Home / 3,806.38-5,708.35-1,208.71

Finding the Fourth Proportional to 3,806.38, 5,708.35 and 1,208.71

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Solution

The fourth proportional to 3,806.38, 5,708.35 and 1,208.71 is: 1,812.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,806.38 : 5,708.35 = 1,208.71 : x
  2. Step 2: Convert to fraction form
    3,806.38/5,708.35 = 1,208.71/x
  3. Step 3: Cross multiply
    3,806.38x = 5,708.35 × 1,208.71
  4. Step 4: Simplify right side
    3,806.38x = 6,899,739.73
  5. Step 5: Solve for x
    x = 6,899,739.73/3,806.38
  6. Step 6: Final answer
    x = 1,812.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.