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Finding the Third Proportional to 3,039 and 6,778.50

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Solution

The third proportional to 3,039 and 6,778.50 is: 15,119.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039 : 6,778.50 = 6,778.50 : x
  2. Step 2: Convert to fraction form
    3,039/6,778.50 = 6,778.50/x
  3. Step 3: Cross multiply
    3,039x = 6,778.50 × 6,778.50
  4. Step 4: Simplify right side
    3,039x = 45,948,062.25
  5. Step 5: Solve for x
    x = 45,948,062.25/3,039
  6. Step 6: Final answer
    x = 15,119.47

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.