Home / 3,201.87-4,418.81-1,785.65

Finding the Fourth Proportional to 3,201.87, 4,418.81 and 1,785.65

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Solution

The fourth proportional to 3,201.87, 4,418.81 and 1,785.65 is: 2,464.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.87 : 4,418.81 = 1,785.65 : x
  2. Step 2: Convert to fraction form
    3,201.87/4,418.81 = 1,785.65/x
  3. Step 3: Cross multiply
    3,201.87x = 4,418.81 × 1,785.65
  4. Step 4: Simplify right side
    3,201.87x = 7,890,458.52
  5. Step 5: Solve for x
    x = 7,890,458.52/3,201.87
  6. Step 6: Final answer
    x = 2,464.33

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.