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Finding the Third Proportional to 3,585.38 and 5,480.81

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Solution

The third proportional to 3,585.38 and 5,480.81 is: 8,378.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,585.38 : 5,480.81 = 5,480.81 : x
  2. Step 2: Convert to fraction form
    3,585.38/5,480.81 = 5,480.81/x
  3. Step 3: Cross multiply
    3,585.38x = 5,480.81 × 5,480.81
  4. Step 4: Simplify right side
    3,585.38x = 30,039,305.66
  5. Step 5: Solve for x
    x = 30,039,305.66/3,585.38
  6. Step 6: Final answer
    x = 8,378.29

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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.