Home / 2,181.26-3,272.44-1,939.62

Finding the Fourth Proportional to 2,181.26, 3,272.44 and 1,939.62

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Solution

The fourth proportional to 2,181.26, 3,272.44 and 1,939.62 is: 2,909.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,181.26 : 3,272.44 = 1,939.62 : x
  2. Step 2: Convert to fraction form
    2,181.26/3,272.44 = 1,939.62/x
  3. Step 3: Cross multiply
    2,181.26x = 3,272.44 × 1,939.62
  4. Step 4: Simplify right side
    2,181.26x = 6,347,290.07
  5. Step 5: Solve for x
    x = 6,347,290.07/2,181.26
  6. Step 6: Final answer
    x = 2,909.92

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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.