Home / 1,350.13-2,025.27-425.72

Finding the Fourth Proportional to 1,350.13, 2,025.27 and 425.72

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Solution

The fourth proportional to 1,350.13, 2,025.27 and 425.72 is: 638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.13 : 2,025.27 = 425.72 : x
  2. Step 2: Convert to fraction form
    1,350.13/2,025.27 = 425.72/x
  3. Step 3: Cross multiply
    1,350.13x = 2,025.27 × 425.72
  4. Step 4: Simplify right side
    1,350.13x = 862,187.82
  5. Step 5: Solve for x
    x = 862,187.82/1,350.13
  6. Step 6: Final answer
    x = 638.60

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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.