Home / 2,321.42-3,481.58-1,089.68

Finding the Fourth Proportional to 2,321.42, 3,481.58 and 1,089.68

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Solution

The fourth proportional to 2,321.42, 3,481.58 and 1,089.68 is: 1,634.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,321.42 : 3,481.58 = 1,089.68 : x
  2. Step 2: Convert to fraction form
    2,321.42/3,481.58 = 1,089.68/x
  3. Step 3: Cross multiply
    2,321.42x = 3,481.58 × 1,089.68
  4. Step 4: Simplify right side
    2,321.42x = 3,793,793.41
  5. Step 5: Solve for x
    x = 3,793,793.41/2,321.42
  6. Step 6: Final answer
    x = 1,634.26

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1.5x scale

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.