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Finding the Fourth Proportional to 7,163.46, 10,748.18 and 3,158.82

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Solution

The fourth proportional to 7,163.46, 10,748.18 and 3,158.82 is: 4,739.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,163.46 : 10,748.18 = 3,158.82 : x
  2. Step 2: Convert to fraction form
    7,163.46/10,748.18 = 3,158.82/x
  3. Step 3: Cross multiply
    7,163.46x = 10,748.18 × 3,158.82
  4. Step 4: Simplify right side
    7,163.46x = 33,951,565.95
  5. Step 5: Solve for x
    x = 33,951,565.95/7,163.46
  6. Step 6: Final answer
    x = 4,739.55

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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.