Home / 3,228-4,452.56-1,986.08

Finding the Fourth Proportional to 3,228, 4,452.56 and 1,986.08

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Solution

The fourth proportional to 3,228, 4,452.56 and 1,986.08 is: 2,739.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,228 : 4,452.56 = 1,986.08 : x
  2. Step 2: Convert to fraction form
    3,228/4,452.56 = 1,986.08/x
  3. Step 3: Cross multiply
    3,228x = 4,452.56 × 1,986.08
  4. Step 4: Simplify right side
    3,228x = 8,843,140.36
  5. Step 5: Solve for x
    x = 8,843,140.36/3,228
  6. Step 6: Final answer
    x = 2,739.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.