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Finding the Fourth Proportional to 7,791.62, 11,687.61 and 2,245.10

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Solution

The fourth proportional to 7,791.62, 11,687.61 and 2,245.10 is: 3,367.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,791.62 : 11,687.61 = 2,245.10 : x
  2. Step 2: Convert to fraction form
    7,791.62/11,687.61 = 2,245.10/x
  3. Step 3: Cross multiply
    7,791.62x = 11,687.61 × 2,245.10
  4. Step 4: Simplify right side
    7,791.62x = 26,239,853.21
  5. Step 5: Solve for x
    x = 26,239,853.21/7,791.62
  6. Step 6: Final answer
    x = 3,367.70

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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.