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Finding the Third Proportional to 3,258 and 6,978.75

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Solution

The third proportional to 3,258 and 6,978.75 is: 14,948.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,258 : 6,978.75 = 6,978.75 : x
  2. Step 2: Convert to fraction form
    3,258/6,978.75 = 6,978.75/x
  3. Step 3: Cross multiply
    3,258x = 6,978.75 × 6,978.75
  4. Step 4: Simplify right side
    3,258x = 48,702,951.56
  5. Step 5: Solve for x
    x = 48,702,951.56/3,258
  6. Step 6: Final answer
    x = 14,948.73

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Why These Related Problems?

These problems maintain the same ratio (2.14) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.