Home / 7,425.64-11,139.52-2,231.92

Finding the Fourth Proportional to 7,425.64, 11,139.52 and 2,231.92

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Solution

The fourth proportional to 7,425.64, 11,139.52 and 2,231.92 is: 3,348.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,425.64 : 11,139.52 = 2,231.92 : x
  2. Step 2: Convert to fraction form
    7,425.64/11,139.52 = 2,231.92/x
  3. Step 3: Cross multiply
    7,425.64x = 11,139.52 × 2,231.92
  4. Step 4: Simplify right side
    7,425.64x = 24,862,517.48
  5. Step 5: Solve for x
    x = 24,862,517.48/7,425.64
  6. Step 6: Final answer
    x = 3,348.20

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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.