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Finding the Fourth Proportional to 3,963.30, 5,469.39 and 2,195

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Solution

The fourth proportional to 3,963.30, 5,469.39 and 2,195 is: 3,029.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963.30 : 5,469.39 = 2,195 : x
  2. Step 2: Convert to fraction form
    3,963.30/5,469.39 = 2,195/x
  3. Step 3: Cross multiply
    3,963.30x = 5,469.39 × 2,195
  4. Step 4: Simplify right side
    3,963.30x = 12,005,311.05
  5. Step 5: Solve for x
    x = 12,005,311.05/3,963.30
  6. Step 6: Final answer
    x = 3,029.12

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.