Home / 2,067.42-2,853.40-1,228.42

Finding the Fourth Proportional to 2,067.42, 2,853.40 and 1,228.42

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Solution

The fourth proportional to 2,067.42, 2,853.40 and 1,228.42 is: 1,695.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,067.42 : 2,853.40 = 1,228.42 : x
  2. Step 2: Convert to fraction form
    2,067.42/2,853.40 = 1,228.42/x
  3. Step 3: Cross multiply
    2,067.42x = 2,853.40 × 1,228.42
  4. Step 4: Simplify right side
    2,067.42x = 3,505,163.83
  5. Step 5: Solve for x
    x = 3,505,163.83/2,067.42
  6. Step 6: Final answer
    x = 1,695.43

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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.