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Finding the Fourth Proportional to 3,691.59, 5,531.23 and 2,650.03

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Solution

The fourth proportional to 3,691.59, 5,531.23 and 2,650.03 is: 3,970.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,691.59 : 5,531.23 = 2,650.03 : x
  2. Step 2: Convert to fraction form
    3,691.59/5,531.23 = 2,650.03/x
  3. Step 3: Cross multiply
    3,691.59x = 5,531.23 × 2,650.03
  4. Step 4: Simplify right side
    3,691.59x = 14,657,904.98
  5. Step 5: Solve for x
    x = 14,657,904.98/3,691.59
  6. Step 6: Final answer
    x = 3,970.62

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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.