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Finding the Fourth Proportional to 3,960.72, 5,463 and 2,633.76

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Solution

The fourth proportional to 3,960.72, 5,463 and 2,633.76 is: 3,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.72 : 5,463 = 2,633.76 : x
  2. Step 2: Convert to fraction form
    3,960.72/5,463 = 2,633.76/x
  3. Step 3: Cross multiply
    3,960.72x = 5,463 × 2,633.76
  4. Step 4: Simplify right side
    3,960.72x = 14,388,230.88
  5. Step 5: Solve for x
    x = 14,388,230.88/3,960.72
  6. Step 6: Final answer
    x = 3,632.73

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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.