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Finding the Third Proportional to 3,646 and 7,960.25

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Solution

The third proportional to 3,646 and 7,960.25 is: 17,379.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,646 : 7,960.25 = 7,960.25 : x
  2. Step 2: Convert to fraction form
    3,646/7,960.25 = 7,960.25/x
  3. Step 3: Cross multiply
    3,646x = 7,960.25 × 7,960.25
  4. Step 4: Simplify right side
    3,646x = 63,365,580.06
  5. Step 5: Solve for x
    x = 63,365,580.06/3,646
  6. Step 6: Final answer
    x = 17,379.48

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.