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Finding the Fourth Proportional to 2,745.92, 3,791.04 and 1,864.32

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Solution

The fourth proportional to 2,745.92, 3,791.04 and 1,864.32 is: 2,573.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.92 : 3,791.04 = 1,864.32 : x
  2. Step 2: Convert to fraction form
    2,745.92/3,791.04 = 1,864.32/x
  3. Step 3: Cross multiply
    2,745.92x = 3,791.04 × 1,864.32
  4. Step 4: Simplify right side
    2,745.92x = 7,067,711.69
  5. Step 5: Solve for x
    x = 7,067,711.69/2,745.92
  6. Step 6: Final answer
    x = 2,573.90

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1.5x scale

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.