Solve the proportion 35 over 28 equals x over 4. What is the value of x?
This is a ratio statement. The most common way to solve this is to use cross multiplication. I'll show you how to solve it that way (it's just a shortcut), but first I'll go through it step-by-step
First, our goal is to get rid of the denominators.
That's one denominatro cleared, now on to the next one:
Now we need to isolate the
That simplifies to
Now, to solve the same problem using cross multiplication, we begin with
It looks like this:
It just means skipping steps, but as long as you know what steps you're brushing over, you should be fine.
See the entire solution process below:
First, we can rewrite this written expression as:
Now, multiply each side of the equation by