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Finding the Third Proportional to 4,080 and 8,956

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Solution

The third proportional to 4,080 and 8,956 is: 19,659.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,080 : 8,956 = 8,956 : x
  2. Step 2: Convert to fraction form
    4,080/8,956 = 8,956/x
  3. Step 3: Cross multiply
    4,080x = 8,956 × 8,956
  4. Step 4: Simplify right side
    4,080x = 80,209,936
  5. Step 5: Solve for x
    x = 80,209,936/4,080
  6. Step 6: Final answer
    x = 19,659.30

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.