Home / 2,854.08-3,936.92-1,791.76

Finding the Fourth Proportional to 2,854.08, 3,936.92 and 1,791.76

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Solution

The fourth proportional to 2,854.08, 3,936.92 and 1,791.76 is: 2,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,854.08 : 3,936.92 = 1,791.76 : x
  2. Step 2: Convert to fraction form
    2,854.08/3,936.92 = 1,791.76/x
  3. Step 3: Cross multiply
    2,854.08x = 3,936.92 × 1,791.76
  4. Step 4: Simplify right side
    2,854.08x = 7,054,015.78
  5. Step 5: Solve for x
    x = 7,054,015.78/2,854.08
  6. Step 6: Final answer
    x = 2,471.56

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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.