Home / 3,272.67-4,909.50-1,324.80

Finding the Fourth Proportional to 3,272.67, 4,909.50 and 1,324.80

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Solution

The fourth proportional to 3,272.67, 4,909.50 and 1,324.80 is: 1,987.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.67 : 4,909.50 = 1,324.80 : x
  2. Step 2: Convert to fraction form
    3,272.67/4,909.50 = 1,324.80/x
  3. Step 3: Cross multiply
    3,272.67x = 4,909.50 × 1,324.80
  4. Step 4: Simplify right side
    3,272.67x = 6,504,105.60
  5. Step 5: Solve for x
    x = 6,504,105.60/3,272.67
  6. Step 6: Final answer
    x = 1,987.40

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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.