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Finding the Third Proportional to 2,668 and 6,465

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Solution

The third proportional to 2,668 and 6,465 is: 15,665.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668 : 6,465 = 6,465 : x
  2. Step 2: Convert to fraction form
    2,668/6,465 = 6,465/x
  3. Step 3: Cross multiply
    2,668x = 6,465 × 6,465
  4. Step 4: Simplify right side
    2,668x = 41,796,225
  5. Step 5: Solve for x
    x = 41,796,225/2,668
  6. Step 6: Final answer
    x = 15,665.75

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Why These Related Problems?

These problems maintain the same ratio (2.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.