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Finding the Third Proportional to 3,639.56 and 5,493.94

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Solution

The third proportional to 3,639.56 and 5,493.94 is: 8,293.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.56 : 5,493.94 = 5,493.94 : x
  2. Step 2: Convert to fraction form
    3,639.56/5,493.94 = 5,493.94/x
  3. Step 3: Cross multiply
    3,639.56x = 5,493.94 × 5,493.94
  4. Step 4: Simplify right side
    3,639.56x = 30,183,349.25
  5. Step 5: Solve for x
    x = 30,183,349.25/3,639.56
  6. Step 6: Final answer
    x = 8,293.13

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.