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Finding the Third Proportional to 1,549 and 3,458

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Solution

The third proportional to 1,549 and 3,458 is: 7,719.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549 : 3,458 = 3,458 : x
  2. Step 2: Convert to fraction form
    1,549/3,458 = 3,458/x
  3. Step 3: Cross multiply
    1,549x = 3,458 × 3,458
  4. Step 4: Simplify right side
    1,549x = 11,957,764
  5. Step 5: Solve for x
    x = 11,957,764/1,549
  6. Step 6: Final answer
    x = 7,719.67

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Why These Related Problems?

These problems maintain the same ratio (2.23) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.