Proportions Calculator

What is Proportions Calculator?

A 'Proportion Calculator' is an online tool that finds the proportionate value for the given ratio. Cuemath's 'Proportion Calculator' helps you to find the proportion value within a few seconds.

NOTE: Please enter up to three digits only.

How to Use Proportions Calculator?

Follow the given steps to use the calculator:

  • Step 1: Enter the ratio and also one number, to find the other number.
  • Step 2: Click on "Solve" to know the proportion and the other number.
  • Step 3: Click on "Reset" to enter the new set of values.

How to find the proportions?

The process to find the proportion for the given number is possible with the help of the given ratio. Here a ratio value is given and one value representing one number of the proportion is given. This is useful to find the other proportionate number.

Let us understand more about this with the help of the below-solved example.

Solved Example: 

Find the value of x in the proportion 4 : 7 = 28 : x.


The given proportion is 4 : 7 = 28 : x

4/7 = 28/X

28/X = 4/7

X/28 = 7/4

X = 7/4 × 28

X = 7 × 7

X = 49

Therefore the other proportion value of x = 49.

Now, try the calculator to find the value of x in each of the following proportions.

  • 2 : 11 = X : 242
  • 4 : 3 = 428 : X

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