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Finding the Third Proportional to 3,450.81 and 5,381.22

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Solution

The third proportional to 3,450.81 and 5,381.22 is: 8,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,450.81 : 5,381.22 = 5,381.22 : x
  2. Step 2: Convert to fraction form
    3,450.81/5,381.22 = 5,381.22/x
  3. Step 3: Cross multiply
    3,450.81x = 5,381.22 × 5,381.22
  4. Step 4: Simplify right side
    3,450.81x = 28,957,515.24
  5. Step 5: Solve for x
    x = 28,957,515.24/3,450.81
  6. Step 6: Final answer
    x = 8,391.51

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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.