Home / 3,989.57-5,984.28-1,067.85

Finding the Fourth Proportional to 3,989.57, 5,984.28 and 1,067.85

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Solution

The fourth proportional to 3,989.57, 5,984.28 and 1,067.85 is: 1,601.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.57 : 5,984.28 = 1,067.85 : x
  2. Step 2: Convert to fraction form
    3,989.57/5,984.28 = 1,067.85/x
  3. Step 3: Cross multiply
    3,989.57x = 5,984.28 × 1,067.85
  4. Step 4: Simplify right side
    3,989.57x = 6,390,313.40
  5. Step 5: Solve for x
    x = 6,390,313.40/3,989.57
  6. Step 6: Final answer
    x = 1,601.76

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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.