Home / 2,223.09-3,067.67-1,228.31

Finding the Fourth Proportional to 2,223.09, 3,067.67 and 1,228.31

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Solution

The fourth proportional to 2,223.09, 3,067.67 and 1,228.31 is: 1,694.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.09 : 3,067.67 = 1,228.31 : x
  2. Step 2: Convert to fraction form
    2,223.09/3,067.67 = 1,228.31/x
  3. Step 3: Cross multiply
    2,223.09x = 3,067.67 × 1,228.31
  4. Step 4: Simplify right side
    2,223.09x = 3,768,028.26
  5. Step 5: Solve for x
    x = 3,768,028.26/2,223.09
  6. Step 6: Final answer
    x = 1,694.95

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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.