Home / 2,198.22-3,025.80-1,917.96

Finding the Fourth Proportional to 2,198.22, 3,025.80 and 1,917.96

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Solution

The fourth proportional to 2,198.22, 3,025.80 and 1,917.96 is: 2,640.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.22 : 3,025.80 = 1,917.96 : x
  2. Step 2: Convert to fraction form
    2,198.22/3,025.80 = 1,917.96/x
  3. Step 3: Cross multiply
    2,198.22x = 3,025.80 × 1,917.96
  4. Step 4: Simplify right side
    2,198.22x = 5,803,363.37
  5. Step 5: Solve for x
    x = 5,803,363.37/2,198.22
  6. Step 6: Final answer
    x = 2,640.03

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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.