Answer: x=26
Explanation:
Since y varies directly with x, you set up a proportion equation that normally follows this format:
x1/y1 = x2/y2 or y1/x1 = y2/x2
Using the second one and plugging in our numbers, we get:
52/4=338/x2
If we cross multiply, this gives us 1352=52x.
Last step is simplification, which gives you a final answer of x=26