Home / 2,831.56-4,244.28-1,189

Finding the Fourth Proportional to 2,831.56, 4,244.28 and 1,189

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Solution

The fourth proportional to 2,831.56, 4,244.28 and 1,189 is: 1,782.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.56 : 4,244.28 = 1,189 : x
  2. Step 2: Convert to fraction form
    2,831.56/4,244.28 = 1,189/x
  3. Step 3: Cross multiply
    2,831.56x = 4,244.28 × 1,189
  4. Step 4: Simplify right side
    2,831.56x = 5,046,448.92
  5. Step 5: Solve for x
    x = 5,046,448.92/2,831.56
  6. Step 6: Final answer
    x = 1,782.22

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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.