Home / 3,922.20-5,879.64-1,323.32

Finding the Fourth Proportional to 3,922.20, 5,879.64 and 1,323.32

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Solution

The fourth proportional to 3,922.20, 5,879.64 and 1,323.32 is: 1,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,922.20 : 5,879.64 = 1,323.32 : x
  2. Step 2: Convert to fraction form
    3,922.20/5,879.64 = 1,323.32/x
  3. Step 3: Cross multiply
    3,922.20x = 5,879.64 × 1,323.32
  4. Step 4: Simplify right side
    3,922.20x = 7,780,645.20
  5. Step 5: Solve for x
    x = 7,780,645.20/3,922.20
  6. Step 6: Final answer
    x = 1,983.75

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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.