Home / 1,890.52-2,831.06-1,195.09

Finding the Fourth Proportional to 1,890.52, 2,831.06 and 1,195.09

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Solution

The fourth proportional to 1,890.52, 2,831.06 and 1,195.09 is: 1,789.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,890.52 : 2,831.06 = 1,195.09 : x
  2. Step 2: Convert to fraction form
    1,890.52/2,831.06 = 1,195.09/x
  3. Step 3: Cross multiply
    1,890.52x = 2,831.06 × 1,195.09
  4. Step 4: Simplify right side
    1,890.52x = 3,383,367.41
  5. Step 5: Solve for x
    x = 3,383,367.41/1,890.52
  6. Step 6: Final answer
    x = 1,789.65

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.