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Finding the Third Proportional to 3,354.54 and 5,121.98

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Solution

The third proportional to 3,354.54 and 5,121.98 is: 7,820.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,354.54 : 5,121.98 = 5,121.98 : x
  2. Step 2: Convert to fraction form
    3,354.54/5,121.98 = 5,121.98/x
  3. Step 3: Cross multiply
    3,354.54x = 5,121.98 × 5,121.98
  4. Step 4: Simplify right side
    3,354.54x = 26,234,723.94
  5. Step 5: Solve for x
    x = 26,234,723.94/3,354.54
  6. Step 6: Final answer
    x = 7,820.66

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.