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Finding the Fourth Proportional to 3,770.60, 5,655.88 and 2,655.43

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Solution

The fourth proportional to 3,770.60, 5,655.88 and 2,655.43 is: 3,983.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,770.60 : 5,655.88 = 2,655.43 : x
  2. Step 2: Convert to fraction form
    3,770.60/5,655.88 = 2,655.43/x
  3. Step 3: Cross multiply
    3,770.60x = 5,655.88 × 2,655.43
  4. Step 4: Simplify right side
    3,770.60x = 15,018,799.49
  5. Step 5: Solve for x
    x = 15,018,799.49/3,770.60
  6. Step 6: Final answer
    x = 3,983.13

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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.