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Finding the Third Proportional to 4,489 and 9,203

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Solution

The third proportional to 4,489 and 9,203 is: 18,867.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,489 : 9,203 = 9,203 : x
  2. Step 2: Convert to fraction form
    4,489/9,203 = 9,203/x
  3. Step 3: Cross multiply
    4,489x = 9,203 × 9,203
  4. Step 4: Simplify right side
    4,489x = 84,695,209
  5. Step 5: Solve for x
    x = 84,695,209/4,489
  6. Step 6: Final answer
    x = 18,867.28

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Why These Related Problems?

These problems maintain the same ratio (2.05) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.