Home / 3,977.12-5,965.73-1,203.82

Finding the Fourth Proportional to 3,977.12, 5,965.73 and 1,203.82

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Solution

The fourth proportional to 3,977.12, 5,965.73 and 1,203.82 is: 1,805.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,977.12 : 5,965.73 = 1,203.82 : x
  2. Step 2: Convert to fraction form
    3,977.12/5,965.73 = 1,203.82/x
  3. Step 3: Cross multiply
    3,977.12x = 5,965.73 × 1,203.82
  4. Step 4: Simplify right side
    3,977.12x = 7,181,665.09
  5. Step 5: Solve for x
    x = 7,181,665.09/3,977.12
  6. Step 6: Final answer
    x = 1,805.75

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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.