Home / 925.15-1,387.39-377.04

Finding the Fourth Proportional to 925.15, 1,387.39 and 377.04

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Solution

The fourth proportional to 925.15, 1,387.39 and 377.04 is: 565.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.15 : 1,387.39 = 377.04 : x
  2. Step 2: Convert to fraction form
    925.15/1,387.39 = 377.04/x
  3. Step 3: Cross multiply
    925.15x = 1,387.39 × 377.04
  4. Step 4: Simplify right side
    925.15x = 523,101.53
  5. Step 5: Solve for x
    x = 523,101.53/925.15
  6. Step 6: Final answer
    x = 565.42

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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.