Home / 5,676.72-8,516.45-1,781.13

Finding the Fourth Proportional to 5,676.72, 8,516.45 and 1,781.13

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Solution

The fourth proportional to 5,676.72, 8,516.45 and 1,781.13 is: 2,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,676.72 : 8,516.45 = 1,781.13 : x
  2. Step 2: Convert to fraction form
    5,676.72/8,516.45 = 1,781.13/x
  3. Step 3: Cross multiply
    5,676.72x = 8,516.45 × 1,781.13
  4. Step 4: Simplify right side
    5,676.72x = 15,168,909.04
  5. Step 5: Solve for x
    x = 15,168,909.04/5,676.72
  6. Step 6: Final answer
    x = 2,672.13

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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.