Home / 2,022.22-2,791.35-1,392.22

Finding the Fourth Proportional to 2,022.22, 2,791.35 and 1,392.22

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Solution

The fourth proportional to 2,022.22, 2,791.35 and 1,392.22 is: 1,921.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,022.22 : 2,791.35 = 1,392.22 : x
  2. Step 2: Convert to fraction form
    2,022.22/2,791.35 = 1,392.22/x
  3. Step 3: Cross multiply
    2,022.22x = 2,791.35 × 1,392.22
  4. Step 4: Simplify right side
    2,022.22x = 3,886,173.30
  5. Step 5: Solve for x
    x = 3,886,173.30/2,022.22
  6. Step 6: Final answer
    x = 1,921.74

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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.