Home / 2,021.22-2,789.19-1,235.34

Finding the Fourth Proportional to 2,021.22, 2,789.19 and 1,235.34

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Solution

The fourth proportional to 2,021.22, 2,789.19 and 1,235.34 is: 1,704.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.22 : 2,789.19 = 1,235.34 : x
  2. Step 2: Convert to fraction form
    2,021.22/2,789.19 = 1,235.34/x
  3. Step 3: Cross multiply
    2,021.22x = 2,789.19 × 1,235.34
  4. Step 4: Simplify right side
    2,021.22x = 3,445,597.97
  5. Step 5: Solve for x
    x = 3,445,597.97/2,021.22
  6. Step 6: Final answer
    x = 1,704.71

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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.