Home / 1,831.82-2,744.64-1,181.18

Finding the Fourth Proportional to 1,831.82, 2,744.64 and 1,181.18

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Solution

The fourth proportional to 1,831.82, 2,744.64 and 1,181.18 is: 1,769.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,831.82 : 2,744.64 = 1,181.18 : x
  2. Step 2: Convert to fraction form
    1,831.82/2,744.64 = 1,181.18/x
  3. Step 3: Cross multiply
    1,831.82x = 2,744.64 × 1,181.18
  4. Step 4: Simplify right side
    1,831.82x = 3,241,920.74
  5. Step 5: Solve for x
    x = 3,241,920.74/1,831.82
  6. Step 6: Final answer
    x = 1,769.79

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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.