Home / 2,765.33-4,147.82-1,122.02

Finding the Fourth Proportional to 2,765.33, 4,147.82 and 1,122.02

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Solution

The fourth proportional to 2,765.33, 4,147.82 and 1,122.02 is: 1,682.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.33 : 4,147.82 = 1,122.02 : x
  2. Step 2: Convert to fraction form
    2,765.33/4,147.82 = 1,122.02/x
  3. Step 3: Cross multiply
    2,765.33x = 4,147.82 × 1,122.02
  4. Step 4: Simplify right side
    2,765.33x = 4,653,910.65
  5. Step 5: Solve for x
    x = 4,653,910.65/2,765.33
  6. Step 6: Final answer
    x = 1,682.95

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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.