4.02 is what percent of 4.221 - step by step solution

To get the solution, we are looking for, we need to point out what we know.

1. We assume, that the number 4.221 is 100% - because it's the output value of the task.
2. We assume, that x is the value we are looking for.
3. If 100% equals 4.221, so we can write it down as 100%=4.221.
4. We know, that x% equals 4.02 of the output value, so we can write it down as x%=4.02.
5. Now we have two simple equations:
1) 100%=4.221
2) x%=4.02
where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:
100%/x%=4.221/4.02
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 4.02 is what percent of 4.221

100%/x%=4.221/4.02
(100/x)*x=(4.221/4.02)*x       - we multiply both sides of the equation by x
100=1.05*x       - we divide both sides of the equation by (1.05) to get x
100/1.05=x
95.238095238095=x
x=95.238095238095

now we have:
4.02 is 95.238095238095% of 4.221