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Finding the Fourth Proportional to 3,672, 5,500.20 and 2,748.96

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Solution

The fourth proportional to 3,672, 5,500.20 and 2,748.96 is: 4,117.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,672 : 5,500.20 = 2,748.96 : x
  2. Step 2: Convert to fraction form
    3,672/5,500.20 = 2,748.96/x
  3. Step 3: Cross multiply
    3,672x = 5,500.20 × 2,748.96
  4. Step 4: Simplify right side
    3,672x = 15,119,829.79
  5. Step 5: Solve for x
    x = 15,119,829.79/3,672
  6. Step 6: Final answer
    x = 4,117.60

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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.