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Finding the Third Proportional to 3,918.38 and 5,664.94

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Solution

The third proportional to 3,918.38 and 5,664.94 is: 8,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,918.38 : 5,664.94 = 5,664.94 : x
  2. Step 2: Convert to fraction form
    3,918.38/5,664.94 = 5,664.94/x
  3. Step 3: Cross multiply
    3,918.38x = 5,664.94 × 5,664.94
  4. Step 4: Simplify right side
    3,918.38x = 32,091,516.88
  5. Step 5: Solve for x
    x = 32,091,516.88/3,918.38
  6. Step 6: Final answer
    x = 8,190.01

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.