Home / 3,933.11-5,899-1,121.74

Finding the Fourth Proportional to 3,933.11, 5,899 and 1,121.74

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Solution

The fourth proportional to 3,933.11, 5,899 and 1,121.74 is: 1,682.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.11 : 5,899 = 1,121.74 : x
  2. Step 2: Convert to fraction form
    3,933.11/5,899 = 1,121.74/x
  3. Step 3: Cross multiply
    3,933.11x = 5,899 × 1,121.74
  4. Step 4: Simplify right side
    3,933.11x = 6,617,144.26
  5. Step 5: Solve for x
    x = 6,617,144.26/3,933.11
  6. Step 6: Final answer
    x = 1,682.42

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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.