Home / 2,321.14-3,481.72-1,089.42

Finding the Fourth Proportional to 2,321.14, 3,481.72 and 1,089.42

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Solution

The fourth proportional to 2,321.14, 3,481.72 and 1,089.42 is: 1,634.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.14 : 3,481.72 = 1,089.42 : x
  2. Step 2: Convert to fraction form
    2,321.14/3,481.72 = 1,089.42/x
  3. Step 3: Cross multiply
    2,321.14x = 3,481.72 × 1,089.42
  4. Step 4: Simplify right side
    2,321.14x = 3,793,055.40
  5. Step 5: Solve for x
    x = 3,793,055.40/2,321.14
  6. Step 6: Final answer
    x = 1,634.13

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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.