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Finding the Fourth Proportional to 3,871.68, 5,807.53 and 1,098.27

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Solution

The fourth proportional to 3,871.68, 5,807.53 and 1,098.27 is: 1,647.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,871.68 : 5,807.53 = 1,098.27 : x
  2. Step 2: Convert to fraction form
    3,871.68/5,807.53 = 1,098.27/x
  3. Step 3: Cross multiply
    3,871.68x = 5,807.53 × 1,098.27
  4. Step 4: Simplify right side
    3,871.68x = 6,378,204.19
  5. Step 5: Solve for x
    x = 6,378,204.19/3,871.68
  6. Step 6: Final answer
    x = 1,647.40

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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.