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Finding the Fourth Proportional to 3,839.54, 5,757.48 and 2,195.64

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Solution

The fourth proportional to 3,839.54, 5,757.48 and 2,195.64 is: 3,292.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,839.54 : 5,757.48 = 2,195.64 : x
  2. Step 2: Convert to fraction form
    3,839.54/5,757.48 = 2,195.64/x
  3. Step 3: Cross multiply
    3,839.54x = 5,757.48 × 2,195.64
  4. Step 4: Simplify right side
    3,839.54x = 12,641,353.39
  5. Step 5: Solve for x
    x = 12,641,353.39/3,839.54
  6. Step 6: Final answer
    x = 3,292.42

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1.5x scale

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.