Home / 8,179.44-12,261.60-2,981.68

Finding the Fourth Proportional to 8,179.44, 12,261.60 and 2,981.68

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Solution

The fourth proportional to 8,179.44, 12,261.60 and 2,981.68 is: 4,469.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.44 : 12,261.60 = 2,981.68 : x
  2. Step 2: Convert to fraction form
    8,179.44/12,261.60 = 2,981.68/x
  3. Step 3: Cross multiply
    8,179.44x = 12,261.60 × 2,981.68
  4. Step 4: Simplify right side
    8,179.44x = 36,560,167.49
  5. Step 5: Solve for x
    x = 36,560,167.49/8,179.44
  6. Step 6: Final answer
    x = 4,469.76

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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.