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Finding the Fourth Proportional to 3,279.24, 4,917.11 and 1,304.79

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Solution

The fourth proportional to 3,279.24, 4,917.11 and 1,304.79 is: 1,956.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.24 : 4,917.11 = 1,304.79 : x
  2. Step 2: Convert to fraction form
    3,279.24/4,917.11 = 1,304.79/x
  3. Step 3: Cross multiply
    3,279.24x = 4,917.11 × 1,304.79
  4. Step 4: Simplify right side
    3,279.24x = 6,415,795.96
  5. Step 5: Solve for x
    x = 6,415,795.96/3,279.24
  6. Step 6: Final answer
    x = 1,956.49

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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.