Home / 3,828.28-5,742.22-1,231.02

Finding the Fourth Proportional to 3,828.28, 5,742.22 and 1,231.02

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Solution

The fourth proportional to 3,828.28, 5,742.22 and 1,231.02 is: 1,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.28 : 5,742.22 = 1,231.02 : x
  2. Step 2: Convert to fraction form
    3,828.28/5,742.22 = 1,231.02/x
  3. Step 3: Cross multiply
    3,828.28x = 5,742.22 × 1,231.02
  4. Step 4: Simplify right side
    3,828.28x = 7,068,787.66
  5. Step 5: Solve for x
    x = 7,068,787.66/3,828.28
  6. Step 6: Final answer
    x = 1,846.47

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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.