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Finding the Fourth Proportional to 2,099.96, 3,149.84 and 713.24

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Solution

The fourth proportional to 2,099.96, 3,149.84 and 713.24 is: 1,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099.96 : 3,149.84 = 713.24 : x
  2. Step 2: Convert to fraction form
    2,099.96/3,149.84 = 713.24/x
  3. Step 3: Cross multiply
    2,099.96x = 3,149.84 × 713.24
  4. Step 4: Simplify right side
    2,099.96x = 2,246,591.88
  5. Step 5: Solve for x
    x = 2,246,591.88/2,099.96
  6. Step 6: Final answer
    x = 1,069.83

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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.