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Finding the Fourth Proportional to 3,191.55, 4,787.26 and 2,250.63

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Solution

The fourth proportional to 3,191.55, 4,787.26 and 2,250.63 is: 3,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.55 : 4,787.26 = 2,250.63 : x
  2. Step 2: Convert to fraction form
    3,191.55/4,787.26 = 2,250.63/x
  3. Step 3: Cross multiply
    3,191.55x = 4,787.26 × 2,250.63
  4. Step 4: Simplify right side
    3,191.55x = 10,774,350.97
  5. Step 5: Solve for x
    x = 10,774,350.97/3,191.55
  6. Step 6: Final answer
    x = 3,375.90

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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.