Home / 2,831.96-4,247.24-1,189.69

Finding the Fourth Proportional to 2,831.96, 4,247.24 and 1,189.69

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Solution

The fourth proportional to 2,831.96, 4,247.24 and 1,189.69 is: 1,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.96 : 4,247.24 = 1,189.69 : x
  2. Step 2: Convert to fraction form
    2,831.96/4,247.24 = 1,189.69/x
  3. Step 3: Cross multiply
    2,831.96x = 4,247.24 × 1,189.69
  4. Step 4: Simplify right side
    2,831.96x = 5,052,882.39
  5. Step 5: Solve for x
    x = 5,052,882.39/2,831.96
  6. Step 6: Final answer
    x = 1,784.23

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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.