Simple, powerful calculator to check the proportions of two ratios.
How to use
Enter 3 numbers into the boxes above and then click Calculate to find the missing number to make the proportion/ratio work.
Preset List of Proportion Examples
Below are links to some preset calculations that are commonly searched for:
Random List of Proportion Examples
If you made it this far you must REALLY like proportional ratio examples. Here are some random calculations for you: