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Finding the Third Proportional to 3,354 and 5,215.50

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Solution

The third proportional to 3,354 and 5,215.50 is: 8,110.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354 : 5,215.50 = 5,215.50 : x
  2. Step 2: Convert to fraction form
    3,354/5,215.50 = 5,215.50/x
  3. Step 3: Cross multiply
    3,354x = 5,215.50 × 5,215.50
  4. Step 4: Simplify right side
    3,354x = 27,201,440.25
  5. Step 5: Solve for x
    x = 27,201,440.25/3,354
  6. Step 6: Final answer
    x = 8,110.15

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.