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Finding the Third Proportional to 4,391.09 and 6,347.43

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Solution

The third proportional to 4,391.09 and 6,347.43 is: 9,175.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,391.09 : 6,347.43 = 6,347.43 : x
  2. Step 2: Convert to fraction form
    4,391.09/6,347.43 = 6,347.43/x
  3. Step 3: Cross multiply
    4,391.09x = 6,347.43 × 6,347.43
  4. Step 4: Simplify right side
    4,391.09x = 40,289,814.05
  5. Step 5: Solve for x
    x = 40,289,814.05/4,391.09
  6. Step 6: Final answer
    x = 9,175.36

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.