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Finding the Fourth Proportional to 3,871.59, 5,807.60 and 1,098.04

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Solution

The fourth proportional to 3,871.59, 5,807.60 and 1,098.04 is: 1,647.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.59 : 5,807.60 = 1,098.04 : x
  2. Step 2: Convert to fraction form
    3,871.59/5,807.60 = 1,098.04/x
  3. Step 3: Cross multiply
    3,871.59x = 5,807.60 × 1,098.04
  4. Step 4: Simplify right side
    3,871.59x = 6,376,978.48
  5. Step 5: Solve for x
    x = 6,376,978.48/3,871.59
  6. Step 6: Final answer
    x = 1,647.12

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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.