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Finding the Third Proportional to 2,640 and 4,088

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Solution

The third proportional to 2,640 and 4,088 is: 6,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640 : 4,088 = 4,088 : x
  2. Step 2: Convert to fraction form
    2,640/4,088 = 4,088/x
  3. Step 3: Cross multiply
    2,640x = 4,088 × 4,088
  4. Step 4: Simplify right side
    2,640x = 16,711,744
  5. Step 5: Solve for x
    x = 16,711,744/2,640
  6. Step 6: Final answer
    x = 6,330.21

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.