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Finding the Third Proportional to 1,340 and 3,324

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Solution

The third proportional to 1,340 and 3,324 is: 8,245.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340 : 3,324 = 3,324 : x
  2. Step 2: Convert to fraction form
    1,340/3,324 = 3,324/x
  3. Step 3: Cross multiply
    1,340x = 3,324 × 3,324
  4. Step 4: Simplify right side
    1,340x = 11,048,976
  5. Step 5: Solve for x
    x = 11,048,976/1,340
  6. Step 6: Final answer
    x = 8,245.50

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Why These Related Problems?

These problems maintain the same ratio (2.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.