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Finding the Fourth Proportional to 8,580.55, 12,871.05 and 2,737.16

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Solution

The fourth proportional to 8,580.55, 12,871.05 and 2,737.16 is: 4,105.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,580.55 : 12,871.05 = 2,737.16 : x
  2. Step 2: Convert to fraction form
    8,580.55/12,871.05 = 2,737.16/x
  3. Step 3: Cross multiply
    8,580.55x = 12,871.05 × 2,737.16
  4. Step 4: Simplify right side
    8,580.55x = 35,230,112.26
  5. Step 5: Solve for x
    x = 35,230,112.26/8,580.55
  6. Step 6: Final answer
    x = 4,105.81

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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.