Home / 5,739.45-7,919.79-3,221.22

Finding the Fourth Proportional to 5,739.45, 7,919.79 and 3,221.22

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Solution

The fourth proportional to 5,739.45, 7,919.79 and 3,221.22 is: 4,444.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.45 : 7,919.79 = 3,221.22 : x
  2. Step 2: Convert to fraction form
    5,739.45/7,919.79 = 3,221.22/x
  3. Step 3: Cross multiply
    5,739.45x = 7,919.79 × 3,221.22
  4. Step 4: Simplify right side
    5,739.45x = 25,511,385.94
  5. Step 5: Solve for x
    x = 25,511,385.94/5,739.45
  6. Step 6: Final answer
    x = 4,444.92

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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.