Home / 1,350.38-2,025.59-425.92

Finding the Fourth Proportional to 1,350.38, 2,025.59 and 425.92

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Solution

The fourth proportional to 1,350.38, 2,025.59 and 425.92 is: 638.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.38 : 2,025.59 = 425.92 : x
  2. Step 2: Convert to fraction form
    1,350.38/2,025.59 = 425.92/x
  3. Step 3: Cross multiply
    1,350.38x = 2,025.59 × 425.92
  4. Step 4: Simplify right side
    1,350.38x = 862,727.04
  5. Step 5: Solve for x
    x = 862,727.04/1,350.38
  6. Step 6: Final answer
    x = 638.88

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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.