Home / 2,831.94-4,237.87-2,089.79

Finding the Fourth Proportional to 2,831.94, 4,237.87 and 2,089.79

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Solution

The fourth proportional to 2,831.94, 4,237.87 and 2,089.79 is: 3,127.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,831.94 : 4,237.87 = 2,089.79 : x
  2. Step 2: Convert to fraction form
    2,831.94/4,237.87 = 2,089.79/x
  3. Step 3: Cross multiply
    2,831.94x = 4,237.87 × 2,089.79
  4. Step 4: Simplify right side
    2,831.94x = 8,856,258.35
  5. Step 5: Solve for x
    x = 8,856,258.35/2,831.94
  6. Step 6: Final answer
    x = 3,127.28

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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.