Home / 3,993.14-5,989.79-1,324.73

Finding the Fourth Proportional to 3,993.14, 5,989.79 and 1,324.73

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Solution

The fourth proportional to 3,993.14, 5,989.79 and 1,324.73 is: 1,987.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.14 : 5,989.79 = 1,324.73 : x
  2. Step 2: Convert to fraction form
    3,993.14/5,989.79 = 1,324.73/x
  3. Step 3: Cross multiply
    3,993.14x = 5,989.79 × 1,324.73
  4. Step 4: Simplify right side
    3,993.14x = 7,934,872.79
  5. Step 5: Solve for x
    x = 7,934,872.79/3,993.14
  6. Step 6: Final answer
    x = 1,987.12

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1.5x scale

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.