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Finding the Third Proportional to 3,999.38 and 6,328.13

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Solution

The third proportional to 3,999.38 and 6,328.13 is: 10,012.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,999.38 : 6,328.13 = 6,328.13 : x
  2. Step 2: Convert to fraction form
    3,999.38/6,328.13 = 6,328.13/x
  3. Step 3: Cross multiply
    3,999.38x = 6,328.13 × 6,328.13
  4. Step 4: Simplify right side
    3,999.38x = 40,045,166.02
  5. Step 5: Solve for x
    x = 40,045,166.02/3,999.38
  6. Step 6: Final answer
    x = 10,012.86

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Why These Related Problems?

These problems maintain the same ratio (1.58) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.