Home / 1,350.30-2,025.15-425.73

Finding the Fourth Proportional to 1,350.30, 2,025.15 and 425.73

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Solution

The fourth proportional to 1,350.30, 2,025.15 and 425.73 is: 638.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.30 : 2,025.15 = 425.73 : x
  2. Step 2: Convert to fraction form
    1,350.30/2,025.15 = 425.73/x
  3. Step 3: Cross multiply
    1,350.30x = 2,025.15 × 425.73
  4. Step 4: Simplify right side
    1,350.30x = 862,167.11
  5. Step 5: Solve for x
    x = 862,167.11/1,350.30
  6. Step 6: Final answer
    x = 638.50

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.