Home / 1,831.11-2,743.09-1,212.97

Finding the Fourth Proportional to 1,831.11, 2,743.09 and 1,212.97

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Solution

The fourth proportional to 1,831.11, 2,743.09 and 1,212.97 is: 1,817.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.11 : 2,743.09 = 1,212.97 : x
  2. Step 2: Convert to fraction form
    1,831.11/2,743.09 = 1,212.97/x
  3. Step 3: Cross multiply
    1,831.11x = 2,743.09 × 1,212.97
  4. Step 4: Simplify right side
    1,831.11x = 3,327,285.88
  5. Step 5: Solve for x
    x = 3,327,285.88/1,831.11
  6. Step 6: Final answer
    x = 1,817.09

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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.