Home / 3,828.47-5,742.17-1,231.07

Finding the Fourth Proportional to 3,828.47, 5,742.17 and 1,231.07

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Solution

The fourth proportional to 3,828.47, 5,742.17 and 1,231.07 is: 1,846.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.47 : 5,742.17 = 1,231.07 : x
  2. Step 2: Convert to fraction form
    3,828.47/5,742.17 = 1,231.07/x
  3. Step 3: Cross multiply
    3,828.47x = 5,742.17 × 1,231.07
  4. Step 4: Simplify right side
    3,828.47x = 7,069,013.22
  5. Step 5: Solve for x
    x = 7,069,013.22/3,828.47
  6. Step 6: Final answer
    x = 1,846.43

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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.