Ratio of 3 to 4

Ratio of 3 to 4

A ratio of 3 to 4 can be written as 3 to 4, 3:4, or 3/4. Furthermore, 3 and 4 can be the quantity or measurement of anything, such as students, fruit, weights, heights, speed and so on.

A ratio of 3 to 4 simply means that for every 3 of something, there are 4 of something else, with a total of 7.

In the box below, you can enter a number in either box and we will calculate the other number to keep the ratio of 3 to 4. In other words, we will calculate the corresponding equivalent ratio of 3:4 for you.


To calculate the left side of the ratio, our calculator multiplies the right side by 3 and then divides the product by 4. To calculate the right side of the ratio, our calculator multiplies the left side by 4 and then divides the product by 3. Answers are rounded to two decimals if necessary.

Below is a list of equivalent ratios of 3:4 that we created using our 3:4 ratio calculator above.













We have also created a pie chart for you to put 3:4 ratio in perspective. To do so, we divided a pie into 7 pieces and then colored 3 pieces green and 4 pieces blue. The pie will look exactly the same using any equivalent ratio of 3:4.

3 to 4 pie ratio

The green part of the pie covers 42.86% and the blue part covers 57.14%. To calculate the percentages, we divided each side of the ratio by its total and then multiplied by 100, like this:

(3 / 7)×100 ≈ 42.86
(4 / 7)×100 ≈ 57.14

In fractional terms, 3/4 of the pie above is colored in green. This means that the ratio of 3 to 4 or 3:4 can also be expressed as a fraction, where the 3 to the left of the colon is the numerator and the 4 to the right of the colon is the denominator:

3:4 = 3/4

Ratio is often used when defining rectangles in width:height format. Width and height can be feet, inches, centimeters, or any other kind of length. With a ratio of 3 to 4, the width is 3 and the height is 4. Below is a picture of what a rectangle with a ratio of 3:4 looks like.

3 to 4 pie rectangle

Since the simplest form of the fraction 3/4 is 3/4, the simplest form of the ratio 3:4 is also 3:4.

Ratio Calculator
Need information about another ratio? Here you can submit another ratio for us to explain.


Ratio of 3 to 5
Go to the next ratio on our list that we have detailed information about.

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