Home / 2,198.75-3,289.77-1,351.43

Finding the Fourth Proportional to 2,198.75, 3,289.77 and 1,351.43

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Solution

The fourth proportional to 2,198.75, 3,289.77 and 1,351.43 is: 2,022.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.75 : 3,289.77 = 1,351.43 : x
  2. Step 2: Convert to fraction form
    2,198.75/3,289.77 = 1,351.43/x
  3. Step 3: Cross multiply
    2,198.75x = 3,289.77 × 1,351.43
  4. Step 4: Simplify right side
    2,198.75x = 4,445,877.42
  5. Step 5: Solve for x
    x = 4,445,877.42/2,198.75
  6. Step 6: Final answer
    x = 2,022.01

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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.