Home / 2,222.10-3,067.20-1,436.40

Finding the Fourth Proportional to 2,222.10, 3,067.20 and 1,436.40

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Solution

The fourth proportional to 2,222.10, 3,067.20 and 1,436.40 is: 1,982.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,222.10 : 3,067.20 = 1,436.40 : x
  2. Step 2: Convert to fraction form
    2,222.10/3,067.20 = 1,436.40/x
  3. Step 3: Cross multiply
    2,222.10x = 3,067.20 × 1,436.40
  4. Step 4: Simplify right side
    2,222.10x = 4,405,726.08
  5. Step 5: Solve for x
    x = 4,405,726.08/2,222.10
  6. Step 6: Final answer
    x = 1,982.69

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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.