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Finding the Third Proportional to 3,816.25 and 8,208.25

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Solution

The third proportional to 3,816.25 and 8,208.25 is: 17,654.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.25 : 8,208.25 = 8,208.25 : x
  2. Step 2: Convert to fraction form
    3,816.25/8,208.25 = 8,208.25/x
  3. Step 3: Cross multiply
    3,816.25x = 8,208.25 × 8,208.25
  4. Step 4: Simplify right side
    3,816.25x = 67,375,368.06
  5. Step 5: Solve for x
    x = 67,375,368.06/3,816.25
  6. Step 6: Final answer
    x = 17,654.86

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.