Home / 2,198.44-3,294.51-1,321.30

Finding the Fourth Proportional to 2,198.44, 3,294.51 and 1,321.30

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Solution

The fourth proportional to 2,198.44, 3,294.51 and 1,321.30 is: 1,980.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.44 : 3,294.51 = 1,321.30 : x
  2. Step 2: Convert to fraction form
    2,198.44/3,294.51 = 1,321.30/x
  3. Step 3: Cross multiply
    2,198.44x = 3,294.51 × 1,321.30
  4. Step 4: Simplify right side
    2,198.44x = 4,353,036.06
  5. Step 5: Solve for x
    x = 4,353,036.06/2,198.44
  6. Step 6: Final answer
    x = 1,980.06

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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.