Home / 3,183.95-4,775.82-1,309.78

Finding the Fourth Proportional to 3,183.95, 4,775.82 and 1,309.78

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Solution

The fourth proportional to 3,183.95, 4,775.82 and 1,309.78 is: 1,964.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.95 : 4,775.82 = 1,309.78 : x
  2. Step 2: Convert to fraction form
    3,183.95/4,775.82 = 1,309.78/x
  3. Step 3: Cross multiply
    3,183.95x = 4,775.82 × 1,309.78
  4. Step 4: Simplify right side
    3,183.95x = 6,255,273.52
  5. Step 5: Solve for x
    x = 6,255,273.52/3,183.95
  6. Step 6: Final answer
    x = 1,964.63

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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.