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Finding the Fourth Proportional to 5,676.78, 8,516.97 and 2,167.86

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Solution

The fourth proportional to 5,676.78, 8,516.97 and 2,167.86 is: 3,252.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.78 : 8,516.97 = 2,167.86 : x
  2. Step 2: Convert to fraction form
    5,676.78/8,516.97 = 2,167.86/x
  3. Step 3: Cross multiply
    5,676.78x = 8,516.97 × 2,167.86
  4. Step 4: Simplify right side
    5,676.78x = 18,463,598.58
  5. Step 5: Solve for x
    x = 18,463,598.58/5,676.78
  6. Step 6: Final answer
    x = 3,252.48

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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.