Home / 5,447.72-8,170.54-2,115.97

Finding the Fourth Proportional to 5,447.72, 8,170.54 and 2,115.97

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Solution

The fourth proportional to 5,447.72, 8,170.54 and 2,115.97 is: 3,173.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,447.72 : 8,170.54 = 2,115.97 : x
  2. Step 2: Convert to fraction form
    5,447.72/8,170.54 = 2,115.97/x
  3. Step 3: Cross multiply
    5,447.72x = 8,170.54 × 2,115.97
  4. Step 4: Simplify right side
    5,447.72x = 17,288,591.81
  5. Step 5: Solve for x
    x = 17,288,591.81/5,447.72
  6. Step 6: Final answer
    x = 3,173.54

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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.