Home / 1,525.25-2,104.85-935.78

Finding the Fourth Proportional to 1,525.25, 2,104.85 and 935.78

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Solution

The fourth proportional to 1,525.25, 2,104.85 and 935.78 is: 1,291.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.25 : 2,104.85 = 935.78 : x
  2. Step 2: Convert to fraction form
    1,525.25/2,104.85 = 935.78/x
  3. Step 3: Cross multiply
    1,525.25x = 2,104.85 × 935.78
  4. Step 4: Simplify right side
    1,525.25x = 1,969,668.35
  5. Step 5: Solve for x
    x = 1,969,668.35/1,525.25
  6. Step 6: Final answer
    x = 1,291.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.