Home / 3,828.11-5,729.85-1,976.69

Finding the Fourth Proportional to 3,828.11, 5,729.85 and 1,976.69

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Solution

The fourth proportional to 3,828.11, 5,729.85 and 1,976.69 is: 2,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.11 : 5,729.85 = 1,976.69 : x
  2. Step 2: Convert to fraction form
    3,828.11/5,729.85 = 1,976.69/x
  3. Step 3: Cross multiply
    3,828.11x = 5,729.85 × 1,976.69
  4. Step 4: Simplify right side
    3,828.11x = 11,326,151.52
  5. Step 5: Solve for x
    x = 11,326,151.52/3,828.11
  6. Step 6: Final answer
    x = 2,958.68

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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.