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Finding the Fourth Proportional to 8,079.48, 12,119.22 and 3,694.68

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Solution

The fourth proportional to 8,079.48, 12,119.22 and 3,694.68 is: 5,542.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.48 : 12,119.22 = 3,694.68 : x
  2. Step 2: Convert to fraction form
    8,079.48/12,119.22 = 3,694.68/x
  3. Step 3: Cross multiply
    8,079.48x = 12,119.22 × 3,694.68
  4. Step 4: Simplify right side
    8,079.48x = 44,776,639.75
  5. Step 5: Solve for x
    x = 44,776,639.75/8,079.48
  6. Step 6: Final answer
    x = 5,542.02

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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.