Home / 3,789.88-5,684.46-1,939.96

Finding the Fourth Proportional to 3,789.88, 5,684.46 and 1,939.96

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Solution

The fourth proportional to 3,789.88, 5,684.46 and 1,939.96 is: 2,909.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.88 : 5,684.46 = 1,939.96 : x
  2. Step 2: Convert to fraction form
    3,789.88/5,684.46 = 1,939.96/x
  3. Step 3: Cross multiply
    3,789.88x = 5,684.46 × 1,939.96
  4. Step 4: Simplify right side
    3,789.88x = 11,027,625.02
  5. Step 5: Solve for x
    x = 11,027,625.02/3,789.88
  6. Step 6: Final answer
    x = 2,909.76

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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.