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Finding the Fourth Proportional to 6,759.92, 10,139.88 and 2,861.68

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Solution

The fourth proportional to 6,759.92, 10,139.88 and 2,861.68 is: 4,292.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.92 : 10,139.88 = 2,861.68 : x
  2. Step 2: Convert to fraction form
    6,759.92/10,139.88 = 2,861.68/x
  3. Step 3: Cross multiply
    6,759.92x = 10,139.88 × 2,861.68
  4. Step 4: Simplify right side
    6,759.92x = 29,017,091.80
  5. Step 5: Solve for x
    x = 29,017,091.80/6,759.92
  6. Step 6: Final answer
    x = 4,292.52

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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.