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Finding the Fourth Proportional to 3,671.10, 5,500.98 and 2,742.30

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Solution

The fourth proportional to 3,671.10, 5,500.98 and 2,742.30 is: 4,109.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,671.10 : 5,500.98 = 2,742.30 : x
  2. Step 2: Convert to fraction form
    3,671.10/5,500.98 = 2,742.30/x
  3. Step 3: Cross multiply
    3,671.10x = 5,500.98 × 2,742.30
  4. Step 4: Simplify right side
    3,671.10x = 15,085,337.45
  5. Step 5: Solve for x
    x = 15,085,337.45/3,671.10
  6. Step 6: Final answer
    x = 4,109.21

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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.