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Finding the Fourth Proportional to 6,871.38, 10,300.13 and 2,709.09

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Solution

The fourth proportional to 6,871.38, 10,300.13 and 2,709.09 is: 4,060.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,871.38 : 10,300.13 = 2,709.09 : x
  2. Step 2: Convert to fraction form
    6,871.38/10,300.13 = 2,709.09/x
  3. Step 3: Cross multiply
    6,871.38x = 10,300.13 × 2,709.09
  4. Step 4: Simplify right side
    6,871.38x = 27,904,011.70
  5. Step 5: Solve for x
    x = 27,904,011.70/6,871.38
  6. Step 6: Final answer
    x = 4,060.90

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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.