Home / 3,854.82-5,319.78-2,176.65

Finding the Fourth Proportional to 3,854.82, 5,319.78 and 2,176.65

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Solution

The fourth proportional to 3,854.82, 5,319.78 and 2,176.65 is: 3,003.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,854.82 : 5,319.78 = 2,176.65 : x
  2. Step 2: Convert to fraction form
    3,854.82/5,319.78 = 2,176.65/x
  3. Step 3: Cross multiply
    3,854.82x = 5,319.78 × 2,176.65
  4. Step 4: Simplify right side
    3,854.82x = 11,579,299.14
  5. Step 5: Solve for x
    x = 11,579,299.14/3,854.82
  6. Step 6: Final answer
    x = 3,003.85

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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.