Home / 3,993.28-5,987.41-1,219.03

Finding the Fourth Proportional to 3,993.28, 5,987.41 and 1,219.03

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Solution

The fourth proportional to 3,993.28, 5,987.41 and 1,219.03 is: 1,827.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,993.28 : 5,987.41 = 1,219.03 : x
  2. Step 2: Convert to fraction form
    3,993.28/5,987.41 = 1,219.03/x
  3. Step 3: Cross multiply
    3,993.28x = 5,987.41 × 1,219.03
  4. Step 4: Simplify right side
    3,993.28x = 7,298,832.41
  5. Step 5: Solve for x
    x = 7,298,832.41/3,993.28
  6. Step 6: Final answer
    x = 1,827.78

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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.