Home / 2,228.12-3,336.99-1,129.82

Finding the Fourth Proportional to 2,228.12, 3,336.99 and 1,129.82

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Solution

The fourth proportional to 2,228.12, 3,336.99 and 1,129.82 is: 1,692.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.12 : 3,336.99 = 1,129.82 : x
  2. Step 2: Convert to fraction form
    2,228.12/3,336.99 = 1,129.82/x
  3. Step 3: Cross multiply
    2,228.12x = 3,336.99 × 1,129.82
  4. Step 4: Simplify right side
    2,228.12x = 3,770,198.04
  5. Step 5: Solve for x
    x = 3,770,198.04/2,228.12
  6. Step 6: Final answer
    x = 1,692.10

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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.