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Finding the Fourth Proportional to 925.65, 1,387.58 and 377.10

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Solution

The fourth proportional to 925.65, 1,387.58 and 377.10 is: 565.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.65 : 1,387.58 = 377.10 : x
  2. Step 2: Convert to fraction form
    925.65/1,387.58 = 377.10/x
  3. Step 3: Cross multiply
    925.65x = 1,387.58 × 377.10
  4. Step 4: Simplify right side
    925.65x = 523,254.53
  5. Step 5: Solve for x
    x = 523,254.53/925.65
  6. Step 6: Final answer
    x = 565.28

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Double scale
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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.