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Finding the Third Proportional to 3,894 and 5,064.75

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Solution

The third proportional to 3,894 and 5,064.75 is: 6,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,894 : 5,064.75 = 5,064.75 : x
  2. Step 2: Convert to fraction form
    3,894/5,064.75 = 5,064.75/x
  3. Step 3: Cross multiply
    3,894x = 5,064.75 × 5,064.75
  4. Step 4: Simplify right side
    3,894x = 25,651,692.56
  5. Step 5: Solve for x
    x = 25,651,692.56/3,894
  6. Step 6: Final answer
    x = 6,587.49

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Why These Related Problems?

These problems maintain the same ratio (1.30) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.