Home / 2,205.72-3,311.19-1,743.84

Finding the Fourth Proportional to 2,205.72, 3,311.19 and 1,743.84

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Solution

The fourth proportional to 2,205.72, 3,311.19 and 1,743.84 is: 2,617.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.72 : 3,311.19 = 1,743.84 : x
  2. Step 2: Convert to fraction form
    2,205.72/3,311.19 = 1,743.84/x
  3. Step 3: Cross multiply
    2,205.72x = 3,311.19 × 1,743.84
  4. Step 4: Simplify right side
    2,205.72x = 5,774,185.57
  5. Step 5: Solve for x
    x = 5,774,185.57/2,205.72
  6. Step 6: Final answer
    x = 2,617.82

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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.