Home / 3,789.80-5,684.73-1,324.61

Finding the Fourth Proportional to 3,789.80, 5,684.73 and 1,324.61

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Solution

The fourth proportional to 3,789.80, 5,684.73 and 1,324.61 is: 1,986.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,789.80 : 5,684.73 = 1,324.61 : x
  2. Step 2: Convert to fraction form
    3,789.80/5,684.73 = 1,324.61/x
  3. Step 3: Cross multiply
    3,789.80x = 5,684.73 × 1,324.61
  4. Step 4: Simplify right side
    3,789.80x = 7,530,064.42
  5. Step 5: Solve for x
    x = 7,530,064.42/3,789.80
  6. Step 6: Final answer
    x = 1,986.93

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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.