398.6 is what percent of 2200 - 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 2200 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 2200, so we can write it down as 100%=2200.
4. We know, that x% equals 398.6 of the output value, so we can write it down as x%=398.6.
5. Now we have two simple equations:
1) 100%=2200
2) x%=398.6
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%=2200/398.6
6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for 398.6 is what percent of 2200

100%/x%=2200/398.6
(100/x)*x=(2200/398.6)*x       - we multiply both sides of the equation by x
100=5.5193176116407*x       - we divide both sides of the equation by (5.5193176116407) to get x
100/5.5193176116407=x
18.118181818182=x
x=18.118181818182

now we have:
398.6 is 18.118181818182% of 2200