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Finding the Fourth Proportional to 7,843.61, 11,754.68 and 2,908.48

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Solution

The fourth proportional to 7,843.61, 11,754.68 and 2,908.48 is: 4,358.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.61 : 11,754.68 = 2,908.48 : x
  2. Step 2: Convert to fraction form
    7,843.61/11,754.68 = 2,908.48/x
  3. Step 3: Cross multiply
    7,843.61x = 11,754.68 × 2,908.48
  4. Step 4: Simplify right side
    7,843.61x = 34,188,251.69
  5. Step 5: Solve for x
    x = 34,188,251.69/7,843.61
  6. Step 6: Final answer
    x = 4,358.74

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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.