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Finding the Fourth Proportional to 7,884.56, 10,882.68 and 4,742.60

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Solution

The fourth proportional to 7,884.56, 10,882.68 and 4,742.60 is: 6,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,884.56 : 10,882.68 = 4,742.60 : x
  2. Step 2: Convert to fraction form
    7,884.56/10,882.68 = 4,742.60/x
  3. Step 3: Cross multiply
    7,884.56x = 10,882.68 × 4,742.60
  4. Step 4: Simplify right side
    7,884.56x = 51,612,198.17
  5. Step 5: Solve for x
    x = 51,612,198.17/7,884.56
  6. Step 6: Final answer
    x = 6,545.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.