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Finding the Fourth Proportional to 3,781.53, 5,659.11 and 2,994.62

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Solution

The fourth proportional to 3,781.53, 5,659.11 and 2,994.62 is: 4,481.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,781.53 : 5,659.11 = 2,994.62 : x
  2. Step 2: Convert to fraction form
    3,781.53/5,659.11 = 2,994.62/x
  3. Step 3: Cross multiply
    3,781.53x = 5,659.11 × 2,994.62
  4. Step 4: Simplify right side
    3,781.53x = 16,946,855.69
  5. Step 5: Solve for x
    x = 16,946,855.69/3,781.53
  6. Step 6: Final answer
    x = 4,481.48

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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.