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Finding the Third Proportional to 3,119.25 and 6,855.75

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Solution

The third proportional to 3,119.25 and 6,855.75 is: 15,068.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.25 : 6,855.75 = 6,855.75 : x
  2. Step 2: Convert to fraction form
    3,119.25/6,855.75 = 6,855.75/x
  3. Step 3: Cross multiply
    3,119.25x = 6,855.75 × 6,855.75
  4. Step 4: Simplify right side
    3,119.25x = 47,001,308.06
  5. Step 5: Solve for x
    x = 47,001,308.06/3,119.25
  6. Step 6: Final answer
    x = 15,068.14

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.