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Finding the Fourth Proportional to 3,841.31, 5,760.44 and 1,648.50

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Solution

The fourth proportional to 3,841.31, 5,760.44 and 1,648.50 is: 2,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,841.31 : 5,760.44 = 1,648.50 : x
  2. Step 2: Convert to fraction form
    3,841.31/5,760.44 = 1,648.50/x
  3. Step 3: Cross multiply
    3,841.31x = 5,760.44 × 1,648.50
  4. Step 4: Simplify right side
    3,841.31x = 9,496,077.10
  5. Step 5: Solve for x
    x = 9,496,077.10/3,841.31
  6. Step 6: Final answer
    x = 2,472.10

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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.