Home / 2,575.20-3,862.19-726.49

Finding the Fourth Proportional to 2,575.20, 3,862.19 and 726.49

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Solution

The fourth proportional to 2,575.20, 3,862.19 and 726.49 is: 1,089.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,575.20 : 3,862.19 = 726.49 : x
  2. Step 2: Convert to fraction form
    2,575.20/3,862.19 = 726.49/x
  3. Step 3: Cross multiply
    2,575.20x = 3,862.19 × 726.49
  4. Step 4: Simplify right side
    2,575.20x = 2,805,842.41
  5. Step 5: Solve for x
    x = 2,805,842.41/2,575.20
  6. Step 6: Final answer
    x = 1,089.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.