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Finding the Third Proportional to 3,138.75 and 3,336.19

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Solution

The third proportional to 3,138.75 and 3,336.19 is: 3,546.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,138.75 : 3,336.19 = 3,336.19 : x
  2. Step 2: Convert to fraction form
    3,138.75/3,336.19 = 3,336.19/x
  3. Step 3: Cross multiply
    3,138.75x = 3,336.19 × 3,336.19
  4. Step 4: Simplify right side
    3,138.75x = 11,130,147.04
  5. Step 5: Solve for x
    x = 11,130,147.04/3,138.75
  6. Step 6: Final answer
    x = 3,546.04

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Why These Related Problems?

These problems maintain the same ratio (1.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.