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Finding the Third Proportional to 3,261 and 5,181.75

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Solution

The third proportional to 3,261 and 5,181.75 is: 8,233.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,261 : 5,181.75 = 5,181.75 : x
  2. Step 2: Convert to fraction form
    3,261/5,181.75 = 5,181.75/x
  3. Step 3: Cross multiply
    3,261x = 5,181.75 × 5,181.75
  4. Step 4: Simplify right side
    3,261x = 26,850,533.06
  5. Step 5: Solve for x
    x = 26,850,533.06/3,261
  6. Step 6: Final answer
    x = 8,233.83

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.