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Finding the Fourth Proportional to 8,083.78, 12,125.62 and 2,079.84

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Solution

The fourth proportional to 8,083.78, 12,125.62 and 2,079.84 is: 3,119.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,083.78 : 12,125.62 = 2,079.84 : x
  2. Step 2: Convert to fraction form
    8,083.78/12,125.62 = 2,079.84/x
  3. Step 3: Cross multiply
    8,083.78x = 12,125.62 × 2,079.84
  4. Step 4: Simplify right side
    8,083.78x = 25,219,385.87
  5. Step 5: Solve for x
    x = 25,219,385.87/8,083.78
  6. Step 6: Final answer
    x = 3,119.75

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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.