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Finding the Third Proportional to 3,215.25 and 6,519.94

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Solution

The third proportional to 3,215.25 and 6,519.94 is: 13,221.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.25 : 6,519.94 = 6,519.94 : x
  2. Step 2: Convert to fraction form
    3,215.25/6,519.94 = 6,519.94/x
  3. Step 3: Cross multiply
    3,215.25x = 6,519.94 × 6,519.94
  4. Step 4: Simplify right side
    3,215.25x = 42,509,585.00
  5. Step 5: Solve for x
    x = 42,509,585.00/3,215.25
  6. Step 6: Final answer
    x = 13,221.24

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Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.