Home / 3,989.32-5,984.02-1,067.60

Finding the Fourth Proportional to 3,989.32, 5,984.02 and 1,067.60

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Solution

The fourth proportional to 3,989.32, 5,984.02 and 1,067.60 is: 1,601.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.32 : 5,984.02 = 1,067.60 : x
  2. Step 2: Convert to fraction form
    3,989.32/5,984.02 = 1,067.60/x
  3. Step 3: Cross multiply
    3,989.32x = 5,984.02 × 1,067.60
  4. Step 4: Simplify right side
    3,989.32x = 6,388,539.75
  5. Step 5: Solve for x
    x = 6,388,539.75/3,989.32
  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.