Home / 5,414.59-8,121.92-1,904.62

Finding the Fourth Proportional to 5,414.59, 8,121.92 and 1,904.62

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Solution

The fourth proportional to 5,414.59, 8,121.92 and 1,904.62 is: 2,856.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,414.59 : 8,121.92 = 1,904.62 : x
  2. Step 2: Convert to fraction form
    5,414.59/8,121.92 = 1,904.62/x
  3. Step 3: Cross multiply
    5,414.59x = 8,121.92 × 1,904.62
  4. Step 4: Simplify right side
    5,414.59x = 15,469,149.90
  5. Step 5: Solve for x
    x = 15,469,149.90/5,414.59
  6. Step 6: Final answer
    x = 2,856.94

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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.