Home / 2,045.28-3,067.92-745.84

Finding the Fourth Proportional to 2,045.28, 3,067.92 and 745.84

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Solution

The fourth proportional to 2,045.28, 3,067.92 and 745.84 is: 1,118.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,045.28 : 3,067.92 = 745.84 : x
  2. Step 2: Convert to fraction form
    2,045.28/3,067.92 = 745.84/x
  3. Step 3: Cross multiply
    2,045.28x = 3,067.92 × 745.84
  4. Step 4: Simplify right side
    2,045.28x = 2,288,177.45
  5. Step 5: Solve for x
    x = 2,288,177.45/2,045.28
  6. Step 6: Final answer
    x = 1,118.76

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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.