Home / 3,272.80-4,909.20-1,326.36

Finding the Fourth Proportional to 3,272.80, 4,909.20 and 1,326.36

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Solution

The fourth proportional to 3,272.80, 4,909.20 and 1,326.36 is: 1,989.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,272.80 : 4,909.20 = 1,326.36 : x
  2. Step 2: Convert to fraction form
    3,272.80/4,909.20 = 1,326.36/x
  3. Step 3: Cross multiply
    3,272.80x = 4,909.20 × 1,326.36
  4. Step 4: Simplify right side
    3,272.80x = 6,511,366.51
  5. Step 5: Solve for x
    x = 6,511,366.51/3,272.80
  6. Step 6: Final answer
    x = 1,989.54

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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.