Home / 7,191.28-10,788.66-3,679.84

Finding the Fourth Proportional to 7,191.28, 10,788.66 and 3,679.84

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Solution

The fourth proportional to 7,191.28, 10,788.66 and 3,679.84 is: 5,520.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,191.28 : 10,788.66 = 3,679.84 : x
  2. Step 2: Convert to fraction form
    7,191.28/10,788.66 = 3,679.84/x
  3. Step 3: Cross multiply
    7,191.28x = 10,788.66 × 3,679.84
  4. Step 4: Simplify right side
    7,191.28x = 39,700,542.61
  5. Step 5: Solve for x
    x = 39,700,542.61/7,191.28
  6. Step 6: Final answer
    x = 5,520.65

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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.