Home / 3,414.52-5,121.55-1,439.30

Finding the Fourth Proportional to 3,414.52, 5,121.55 and 1,439.30

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Solution

The fourth proportional to 3,414.52, 5,121.55 and 1,439.30 is: 2,158.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.52 : 5,121.55 = 1,439.30 : x
  2. Step 2: Convert to fraction form
    3,414.52/5,121.55 = 1,439.30/x
  3. Step 3: Cross multiply
    3,414.52x = 5,121.55 × 1,439.30
  4. Step 4: Simplify right side
    3,414.52x = 7,371,414.11
  5. Step 5: Solve for x
    x = 7,371,414.11/3,414.52
  6. Step 6: Final answer
    x = 2,158.85

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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.