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Finding the Fourth Proportional to 8,082.79, 12,124.13 and 2,078.84

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Solution

The fourth proportional to 8,082.79, 12,124.13 and 2,078.84 is: 3,118.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,082.79 : 12,124.13 = 2,078.84 : x
  2. Step 2: Convert to fraction form
    8,082.79/12,124.13 = 2,078.84/x
  3. Step 3: Cross multiply
    8,082.79x = 12,124.13 × 2,078.84
  4. Step 4: Simplify right side
    8,082.79x = 25,204,146.33
  5. Step 5: Solve for x
    x = 25,204,146.33/8,082.79
  6. Step 6: Final answer
    x = 3,118.25

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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.