Home / 2,223.11-3,067.84-1,228.43

Finding the Fourth Proportional to 2,223.11, 3,067.84 and 1,228.43

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Solution

The fourth proportional to 2,223.11, 3,067.84 and 1,228.43 is: 1,695.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.11 : 3,067.84 = 1,228.43 : x
  2. Step 2: Convert to fraction form
    2,223.11/3,067.84 = 1,228.43/x
  3. Step 3: Cross multiply
    2,223.11x = 3,067.84 × 1,228.43
  4. Step 4: Simplify right side
    2,223.11x = 3,768,626.69
  5. Step 5: Solve for x
    x = 3,768,626.69/2,223.11
  6. Step 6: Final answer
    x = 1,695.20

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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.