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Finding the Fourth Proportional to 5,676.92, 8,515.97 and 2,169.88

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Solution

The fourth proportional to 5,676.92, 8,515.97 and 2,169.88 is: 3,255.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.92 : 8,515.97 = 2,169.88 : x
  2. Step 2: Convert to fraction form
    5,676.92/8,515.97 = 2,169.88/x
  3. Step 3: Cross multiply
    5,676.92x = 8,515.97 × 2,169.88
  4. Step 4: Simplify right side
    5,676.92x = 18,478,653.83
  5. Step 5: Solve for x
    x = 18,478,653.83/5,676.92
  6. Step 6: Final answer
    x = 3,255.05

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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.