Home / 2,182.08-3,273.60-721.44

Finding the Fourth Proportional to 2,182.08, 3,273.60 and 721.44

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Solution

The fourth proportional to 2,182.08, 3,273.60 and 721.44 is: 1,082.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,182.08 : 3,273.60 = 721.44 : x
  2. Step 2: Convert to fraction form
    2,182.08/3,273.60 = 721.44/x
  3. Step 3: Cross multiply
    2,182.08x = 3,273.60 × 721.44
  4. Step 4: Simplify right side
    2,182.08x = 2,361,705.98
  5. Step 5: Solve for x
    x = 2,361,705.98/2,182.08
  6. Step 6: Final answer
    x = 1,082.32

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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.