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Finding the Third Proportional to 3,480.75 and 5,331.50

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Solution

The third proportional to 3,480.75 and 5,331.50 is: 8,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,480.75 : 5,331.50 = 5,331.50 : x
  2. Step 2: Convert to fraction form
    3,480.75/5,331.50 = 5,331.50/x
  3. Step 3: Cross multiply
    3,480.75x = 5,331.50 × 5,331.50
  4. Step 4: Simplify right side
    3,480.75x = 28,424,892.25
  5. Step 5: Solve for x
    x = 28,424,892.25/3,480.75
  6. Step 6: Final answer
    x = 8,166.31

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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.