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Finding the Fourth Proportional to 5,445.81, 8,169.78 and 1,747.75

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Solution

The fourth proportional to 5,445.81, 8,169.78 and 1,747.75 is: 2,621.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.81 : 8,169.78 = 1,747.75 : x
  2. Step 2: Convert to fraction form
    5,445.81/8,169.78 = 1,747.75/x
  3. Step 3: Cross multiply
    5,445.81x = 8,169.78 × 1,747.75
  4. Step 4: Simplify right side
    5,445.81x = 14,278,744.68
  5. Step 5: Solve for x
    x = 14,278,744.68/5,445.81
  6. Step 6: Final answer
    x = 2,621.97

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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.