Home / 2,211.44-3,315.53-1,906.88

Finding the Fourth Proportional to 2,211.44, 3,315.53 and 1,906.88

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Solution

The fourth proportional to 2,211.44, 3,315.53 and 1,906.88 is: 2,858.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,211.44 : 3,315.53 = 1,906.88 : x
  2. Step 2: Convert to fraction form
    2,211.44/3,315.53 = 1,906.88/x
  3. Step 3: Cross multiply
    2,211.44x = 3,315.53 × 1,906.88
  4. Step 4: Simplify right side
    2,211.44x = 6,322,306.04
  5. Step 5: Solve for x
    x = 6,322,306.04/2,211.44
  6. Step 6: Final answer
    x = 2,858.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.