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Finding the Fourth Proportional to 3,080.92, 4,250.46 and 1,961.56

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Solution

The fourth proportional to 3,080.92, 4,250.46 and 1,961.56 is: 2,706.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,080.92 : 4,250.46 = 1,961.56 : x
  2. Step 2: Convert to fraction form
    3,080.92/4,250.46 = 1,961.56/x
  3. Step 3: Cross multiply
    3,080.92x = 4,250.46 × 1,961.56
  4. Step 4: Simplify right side
    3,080.92x = 8,337,532.32
  5. Step 5: Solve for x
    x = 8,337,532.32/3,080.92
  6. Step 6: Final answer
    x = 2,706.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.