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Finding the Fourth Proportional to 5,391.86, 8,098.86 and 3,545.60

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Solution

The fourth proportional to 5,391.86, 8,098.86 and 3,545.60 is: 5,325.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,391.86 : 8,098.86 = 3,545.60 : x
  2. Step 2: Convert to fraction form
    5,391.86/8,098.86 = 3,545.60/x
  3. Step 3: Cross multiply
    5,391.86x = 8,098.86 × 3,545.60
  4. Step 4: Simplify right side
    5,391.86x = 28,715,318.02
  5. Step 5: Solve for x
    x = 28,715,318.02/5,391.86
  6. Step 6: Final answer
    x = 5,325.68

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1.5x scale

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.