Home / 2,205.73-3,308.70-1,231.09

Finding the Fourth Proportional to 2,205.73, 3,308.70 and 1,231.09

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Solution

The fourth proportional to 2,205.73, 3,308.70 and 1,231.09 is: 1,846.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,205.73 : 3,308.70 = 1,231.09 : x
  2. Step 2: Convert to fraction form
    2,205.73/3,308.70 = 1,231.09/x
  3. Step 3: Cross multiply
    2,205.73x = 3,308.70 × 1,231.09
  4. Step 4: Simplify right side
    2,205.73x = 4,073,307.48
  5. Step 5: Solve for x
    x = 4,073,307.48/2,205.73
  6. Step 6: Final answer
    x = 1,846.69

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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.