Home / 2,831.38-4,243.56-2,054.04

Finding the Fourth Proportional to 2,831.38, 4,243.56 and 2,054.04

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Solution

The fourth proportional to 2,831.38, 4,243.56 and 2,054.04 is: 3,078.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.38 : 4,243.56 = 2,054.04 : x
  2. Step 2: Convert to fraction form
    2,831.38/4,243.56 = 2,054.04/x
  3. Step 3: Cross multiply
    2,831.38x = 4,243.56 × 2,054.04
  4. Step 4: Simplify right side
    2,831.38x = 8,716,441.98
  5. Step 5: Solve for x
    x = 8,716,441.98/2,831.38
  6. Step 6: Final answer
    x = 3,078.51

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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.