Home / 2,223.13-3,067.98-1,228.47

Finding the Fourth Proportional to 2,223.13, 3,067.98 and 1,228.47

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Solution

The fourth proportional to 2,223.13, 3,067.98 and 1,228.47 is: 1,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,223.13 : 3,067.98 = 1,228.47 : x
  2. Step 2: Convert to fraction form
    2,223.13/3,067.98 = 1,228.47/x
  3. Step 3: Cross multiply
    2,223.13x = 3,067.98 × 1,228.47
  4. Step 4: Simplify right side
    2,223.13x = 3,768,924.70
  5. Step 5: Solve for x
    x = 3,768,924.70/2,223.13
  6. Step 6: Final answer
    x = 1,695.32

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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.