Home / 3,115.17-4,672.64-1,265.73

Finding the Fourth Proportional to 3,115.17, 4,672.64 and 1,265.73

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Solution

The fourth proportional to 3,115.17, 4,672.64 and 1,265.73 is: 1,898.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,115.17 : 4,672.64 = 1,265.73 : x
  2. Step 2: Convert to fraction form
    3,115.17/4,672.64 = 1,265.73/x
  3. Step 3: Cross multiply
    3,115.17x = 4,672.64 × 1,265.73
  4. Step 4: Simplify right side
    3,115.17x = 5,914,294.30
  5. Step 5: Solve for x
    x = 5,914,294.30/3,115.17
  6. Step 6: Final answer
    x = 1,898.55

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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.