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Finding the Fourth Proportional to 3,279.08, 4,905.82 and 2,089.08

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Solution

The fourth proportional to 3,279.08, 4,905.82 and 2,089.08 is: 3,125.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.08 : 4,905.82 = 2,089.08 : x
  2. Step 2: Convert to fraction form
    3,279.08/4,905.82 = 2,089.08/x
  3. Step 3: Cross multiply
    3,279.08x = 4,905.82 × 2,089.08
  4. Step 4: Simplify right side
    3,279.08x = 10,248,650.45
  5. Step 5: Solve for x
    x = 10,248,650.45/3,279.08
  6. Step 6: Final answer
    x = 3,125.47

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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.