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Finding the Third Proportional to 3,172 and 6,554

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Solution

The third proportional to 3,172 and 6,554 is: 13,541.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172 : 6,554 = 6,554 : x
  2. Step 2: Convert to fraction form
    3,172/6,554 = 6,554/x
  3. Step 3: Cross multiply
    3,172x = 6,554 × 6,554
  4. Step 4: Simplify right side
    3,172x = 42,954,916
  5. Step 5: Solve for x
    x = 42,954,916/3,172
  6. Step 6: Final answer
    x = 13,541.90

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.