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Finding the Fourth Proportional to 3,191.68, 4,798.46 and 2,951.11

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Solution

The fourth proportional to 3,191.68, 4,798.46 and 2,951.11 is: 4,436.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191.68 : 4,798.46 = 2,951.11 : x
  2. Step 2: Convert to fraction form
    3,191.68/4,798.46 = 2,951.11/x
  3. Step 3: Cross multiply
    3,191.68x = 4,798.46 × 2,951.11
  4. Step 4: Simplify right side
    3,191.68x = 14,160,756.54
  5. Step 5: Solve for x
    x = 14,160,756.54/3,191.68
  6. Step 6: Final answer
    x = 4,436.78

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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.