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Finding the Fourth Proportional to 3,730, 5,147.52 and 2,074

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Solution

The fourth proportional to 3,730, 5,147.52 and 2,074 is: 2,862.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,730 : 5,147.52 = 2,074 : x
  2. Step 2: Convert to fraction form
    3,730/5,147.52 = 2,074/x
  3. Step 3: Cross multiply
    3,730x = 5,147.52 × 2,074
  4. Step 4: Simplify right side
    3,730x = 10,675,956.48
  5. Step 5: Solve for x
    x = 10,675,956.48/3,730
  6. Step 6: Final answer
    x = 2,862.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.