Home / 3,828.21-5,745.92-1,881.81

Finding the Fourth Proportional to 3,828.21, 5,745.92 and 1,881.81

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Solution

The fourth proportional to 3,828.21, 5,745.92 and 1,881.81 is: 2,824.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.21 : 5,745.92 = 1,881.81 : x
  2. Step 2: Convert to fraction form
    3,828.21/5,745.92 = 1,881.81/x
  3. Step 3: Cross multiply
    3,828.21x = 5,745.92 × 1,881.81
  4. Step 4: Simplify right side
    3,828.21x = 10,812,720.31
  5. Step 5: Solve for x
    x = 10,812,720.31/3,828.21
  6. Step 6: Final answer
    x = 2,824.48

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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.