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Finding the Third Proportional to 3,168 and 3,384.75

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Solution

The third proportional to 3,168 and 3,384.75 is: 3,616.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,168 : 3,384.75 = 3,384.75 : x
  2. Step 2: Convert to fraction form
    3,168/3,384.75 = 3,384.75/x
  3. Step 3: Cross multiply
    3,168x = 3,384.75 × 3,384.75
  4. Step 4: Simplify right side
    3,168x = 11,456,532.56
  5. Step 5: Solve for x
    x = 11,456,532.56/3,168
  6. Step 6: Final answer
    x = 3,616.33

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Why These Related Problems?

These problems maintain the same ratio (1.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.