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Finding the Third Proportional to 3,221 and 6,788

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Solution

The third proportional to 3,221 and 6,788 is: 14,305.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221 : 6,788 = 6,788 : x
  2. Step 2: Convert to fraction form
    3,221/6,788 = 6,788/x
  3. Step 3: Cross multiply
    3,221x = 6,788 × 6,788
  4. Step 4: Simplify right side
    3,221x = 46,076,944
  5. Step 5: Solve for x
    x = 46,076,944/3,221
  6. Step 6: Final answer
    x = 14,305.17

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Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.