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Finding the Fourth Proportional to 3,951.12, 5,926.20 and 3,074.50

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Solution

The fourth proportional to 3,951.12, 5,926.20 and 3,074.50 is: 4,611.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.12 : 5,926.20 = 3,074.50 : x
  2. Step 2: Convert to fraction form
    3,951.12/5,926.20 = 3,074.50/x
  3. Step 3: Cross multiply
    3,951.12x = 5,926.20 × 3,074.50
  4. Step 4: Simplify right side
    3,951.12x = 18,220,101.90
  5. Step 5: Solve for x
    x = 18,220,101.90/3,951.12
  6. Step 6: Final answer
    x = 4,611.38

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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.