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Finding the Fourth Proportional to 7,891.55, 11,839.14 and 2,344.77

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Solution

The fourth proportional to 7,891.55, 11,839.14 and 2,344.77 is: 3,517.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,891.55 : 11,839.14 = 2,344.77 : x
  2. Step 2: Convert to fraction form
    7,891.55/11,839.14 = 2,344.77/x
  3. Step 3: Cross multiply
    7,891.55x = 11,839.14 × 2,344.77
  4. Step 4: Simplify right side
    7,891.55x = 27,760,060.30
  5. Step 5: Solve for x
    x = 27,760,060.30/7,891.55
  6. Step 6: Final answer
    x = 3,517.70

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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.