Home / 3,432.78-5,149.13-1,092.75

Finding the Fourth Proportional to 3,432.78, 5,149.13 and 1,092.75

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Solution

The fourth proportional to 3,432.78, 5,149.13 and 1,092.75 is: 1,639.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,432.78 : 5,149.13 = 1,092.75 : x
  2. Step 2: Convert to fraction form
    3,432.78/5,149.13 = 1,092.75/x
  3. Step 3: Cross multiply
    3,432.78x = 5,149.13 × 1,092.75
  4. Step 4: Simplify right side
    3,432.78x = 5,626,706.34
  5. Step 5: Solve for x
    x = 5,626,706.34/3,432.78
  6. Step 6: Final answer
    x = 1,639.11

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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.