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Finding the Third Proportional to 2,745 and 4,459

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Solution

The third proportional to 2,745 and 4,459 is: 7,243.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745 : 4,459 = 4,459 : x
  2. Step 2: Convert to fraction form
    2,745/4,459 = 4,459/x
  3. Step 3: Cross multiply
    2,745x = 4,459 × 4,459
  4. Step 4: Simplify right side
    2,745x = 19,882,681
  5. Step 5: Solve for x
    x = 19,882,681/2,745
  6. Step 6: Final answer
    x = 7,243.24

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Why These Related Problems?

These problems maintain the same ratio (1.62) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.