Home / 3,989.12-5,984.16-1,067.52

Finding the Fourth Proportional to 3,989.12, 5,984.16 and 1,067.52

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Solution

The fourth proportional to 3,989.12, 5,984.16 and 1,067.52 is: 1,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.12 : 5,984.16 = 1,067.52 : x
  2. Step 2: Convert to fraction form
    3,989.12/5,984.16 = 1,067.52/x
  3. Step 3: Cross multiply
    3,989.12x = 5,984.16 × 1,067.52
  4. Step 4: Simplify right side
    3,989.12x = 6,388,210.48
  5. Step 5: Solve for x
    x = 6,388,210.48/3,989.12
  6. Step 6: Final answer
    x = 1,601.41

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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.