Home / 5,243.10-7,236.31-3,831.43

Finding the Fourth Proportional to 5,243.10, 7,236.31 and 3,831.43

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Solution

The fourth proportional to 5,243.10, 7,236.31 and 3,831.43 is: 5,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.10 : 7,236.31 = 3,831.43 : x
  2. Step 2: Convert to fraction form
    5,243.10/7,236.31 = 3,831.43/x
  3. Step 3: Cross multiply
    5,243.10x = 7,236.31 × 3,831.43
  4. Step 4: Simplify right side
    5,243.10x = 27,725,398.73
  5. Step 5: Solve for x
    x = 27,725,398.73/5,243.10
  6. Step 6: Final answer
    x = 5,287.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.