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Finding the Fourth Proportional to 6,751.29, 9,315.29 and 3,917.03

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Solution

The fourth proportional to 6,751.29, 9,315.29 and 3,917.03 is: 5,404.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,751.29 : 9,315.29 = 3,917.03 : x
  2. Step 2: Convert to fraction form
    6,751.29/9,315.29 = 3,917.03/x
  3. Step 3: Cross multiply
    6,751.29x = 9,315.29 × 3,917.03
  4. Step 4: Simplify right side
    6,751.29x = 36,488,233.60
  5. Step 5: Solve for x
    x = 36,488,233.60/6,751.29
  6. Step 6: Final answer
    x = 5,404.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.