Home / 3,272.40-4,909.82-1,325.97

Finding the Fourth Proportional to 3,272.40, 4,909.82 and 1,325.97

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Solution

The fourth proportional to 3,272.40, 4,909.82 and 1,325.97 is: 1,989.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.40 : 4,909.82 = 1,325.97 : x
  2. Step 2: Convert to fraction form
    3,272.40/4,909.82 = 1,325.97/x
  3. Step 3: Cross multiply
    3,272.40x = 4,909.82 × 1,325.97
  4. Step 4: Simplify right side
    3,272.40x = 6,510,267.40
  5. Step 5: Solve for x
    x = 6,510,267.40/3,272.40
  6. Step 6: Final answer
    x = 1,989.45

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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.