Home / 2,831.76-4,246.83-1,188

Finding the Fourth Proportional to 2,831.76, 4,246.83 and 1,188

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Solution

The fourth proportional to 2,831.76, 4,246.83 and 1,188 is: 1,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.76 : 4,246.83 = 1,188 : x
  2. Step 2: Convert to fraction form
    2,831.76/4,246.83 = 1,188/x
  3. Step 3: Cross multiply
    2,831.76x = 4,246.83 × 1,188
  4. Step 4: Simplify right side
    2,831.76x = 5,045,234.04
  5. Step 5: Solve for x
    x = 5,045,234.04/2,831.76
  6. Step 6: Final answer
    x = 1,781.66

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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.