Home / 2,067.27-3,102.35-912.39

Finding the Fourth Proportional to 2,067.27, 3,102.35 and 912.39

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Solution

The fourth proportional to 2,067.27, 3,102.35 and 912.39 is: 1,369.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,067.27 : 3,102.35 = 912.39 : x
  2. Step 2: Convert to fraction form
    2,067.27/3,102.35 = 912.39/x
  3. Step 3: Cross multiply
    2,067.27x = 3,102.35 × 912.39
  4. Step 4: Simplify right side
    2,067.27x = 2,830,553.12
  5. Step 5: Solve for x
    x = 2,830,553.12/2,067.27
  6. Step 6: Final answer
    x = 1,369.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.