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Finding the Fourth Proportional to 3,964.86, 5,947.54 and 1,332.16

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Solution

The fourth proportional to 3,964.86, 5,947.54 and 1,332.16 is: 1,998.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,964.86 : 5,947.54 = 1,332.16 : x
  2. Step 2: Convert to fraction form
    3,964.86/5,947.54 = 1,332.16/x
  3. Step 3: Cross multiply
    3,964.86x = 5,947.54 × 1,332.16
  4. Step 4: Simplify right side
    3,964.86x = 7,923,074.89
  5. Step 5: Solve for x
    x = 7,923,074.89/3,964.86
  6. Step 6: Final answer
    x = 1,998.32

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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.