Home / 2,223.12-3,067.83-1,228.44

Finding the Fourth Proportional to 2,223.12, 3,067.83 and 1,228.44

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Solution

The fourth proportional to 2,223.12, 3,067.83 and 1,228.44 is: 1,695.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.12 : 3,067.83 = 1,228.44 : x
  2. Step 2: Convert to fraction form
    2,223.12/3,067.83 = 1,228.44/x
  3. Step 3: Cross multiply
    2,223.12x = 3,067.83 × 1,228.44
  4. Step 4: Simplify right side
    2,223.12x = 3,768,645.09
  5. Step 5: Solve for x
    x = 3,768,645.09/2,223.12
  6. Step 6: Final answer
    x = 1,695.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.