Home / 2,765.64-4,149.83-1,122.66

Finding the Fourth Proportional to 2,765.64, 4,149.83 and 1,122.66

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Solution

The fourth proportional to 2,765.64, 4,149.83 and 1,122.66 is: 1,684.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,765.64 : 4,149.83 = 1,122.66 : x
  2. Step 2: Convert to fraction form
    2,765.64/4,149.83 = 1,122.66/x
  3. Step 3: Cross multiply
    2,765.64x = 4,149.83 × 1,122.66
  4. Step 4: Simplify right side
    2,765.64x = 4,658,850.95
  5. Step 5: Solve for x
    x = 4,658,850.95/2,765.64
  6. Step 6: Final answer
    x = 1,684.54

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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.