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Finding the Third Proportional to 3,908.25 and 6,140.81

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Solution

The third proportional to 3,908.25 and 6,140.81 is: 9,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,908.25 : 6,140.81 = 6,140.81 : x
  2. Step 2: Convert to fraction form
    3,908.25/6,140.81 = 6,140.81/x
  3. Step 3: Cross multiply
    3,908.25x = 6,140.81 × 6,140.81
  4. Step 4: Simplify right side
    3,908.25x = 37,709,578.16
  5. Step 5: Solve for x
    x = 37,709,578.16/3,908.25
  6. Step 6: Final answer
    x = 9,648.71

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.