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Finding the Fourth Proportional to 2,761.07, 4,143.11 and 1,096.20

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Solution

The fourth proportional to 2,761.07, 4,143.11 and 1,096.20 is: 1,644.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,761.07 : 4,143.11 = 1,096.20 : x
  2. Step 2: Convert to fraction form
    2,761.07/4,143.11 = 1,096.20/x
  3. Step 3: Cross multiply
    2,761.07x = 4,143.11 × 1,096.20
  4. Step 4: Simplify right side
    2,761.07x = 4,541,671.70
  5. Step 5: Solve for x
    x = 4,541,671.70/2,761.07
  6. Step 6: Final answer
    x = 1,644.90

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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.