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Finding the Fourth Proportional to 8,092.89, 12,139.64 and 2,898.76

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Solution

The fourth proportional to 8,092.89, 12,139.64 and 2,898.76 is: 4,348.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,092.89 : 12,139.64 = 2,898.76 : x
  2. Step 2: Convert to fraction form
    8,092.89/12,139.64 = 2,898.76/x
  3. Step 3: Cross multiply
    8,092.89x = 12,139.64 × 2,898.76
  4. Step 4: Simplify right side
    8,092.89x = 35,189,902.85
  5. Step 5: Solve for x
    x = 35,189,902.85/8,092.89
  6. Step 6: Final answer
    x = 4,348.25

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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.