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Finding the Fourth Proportional to 3,806, 5,257.37 and 3,062.79

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Solution

The fourth proportional to 3,806, 5,257.37 and 3,062.79 is: 4,230.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806 : 5,257.37 = 3,062.79 : x
  2. Step 2: Convert to fraction form
    3,806/5,257.37 = 3,062.79/x
  3. Step 3: Cross multiply
    3,806x = 5,257.37 × 3,062.79
  4. Step 4: Simplify right side
    3,806x = 16,102,220.26
  5. Step 5: Solve for x
    x = 16,102,220.26/3,806
  6. Step 6: Final answer
    x = 4,230.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.