Home / 2,110.35-2,912.20-1,226.09

Finding the Fourth Proportional to 2,110.35, 2,912.20 and 1,226.09

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Solution

The fourth proportional to 2,110.35, 2,912.20 and 1,226.09 is: 1,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,110.35 : 2,912.20 = 1,226.09 : x
  2. Step 2: Convert to fraction form
    2,110.35/2,912.20 = 1,226.09/x
  3. Step 3: Cross multiply
    2,110.35x = 2,912.20 × 1,226.09
  4. Step 4: Simplify right side
    2,110.35x = 3,570,614.03
  5. Step 5: Solve for x
    x = 3,570,614.03/2,110.35
  6. Step 6: Final answer
    x = 1,691.95

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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.