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Finding the Fourth Proportional to 3,966.64, 5,949.16 and 1,369.84

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Solution

The fourth proportional to 3,966.64, 5,949.16 and 1,369.84 is: 2,054.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,966.64 : 5,949.16 = 1,369.84 : x
  2. Step 2: Convert to fraction form
    3,966.64/5,949.16 = 1,369.84/x
  3. Step 3: Cross multiply
    3,966.64x = 5,949.16 × 1,369.84
  4. Step 4: Simplify right side
    3,966.64x = 8,149,397.33
  5. Step 5: Solve for x
    x = 8,149,397.33/3,966.64
  6. Step 6: Final answer
    x = 2,054.48

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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.