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Finding the Fourth Proportional to 3,741.70, 5,612.43 and 1,549.78

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Solution

The fourth proportional to 3,741.70, 5,612.43 and 1,549.78 is: 2,324.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,741.70 : 5,612.43 = 1,549.78 : x
  2. Step 2: Convert to fraction form
    3,741.70/5,612.43 = 1,549.78/x
  3. Step 3: Cross multiply
    3,741.70x = 5,612.43 × 1,549.78
  4. Step 4: Simplify right side
    3,741.70x = 8,698,031.77
  5. Step 5: Solve for x
    x = 8,698,031.77/3,741.70
  6. Step 6: Final answer
    x = 2,324.62

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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.