Home / 3,831.94-5,288.07-2,239.68

Finding the Fourth Proportional to 3,831.94, 5,288.07 and 2,239.68

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Solution

The fourth proportional to 3,831.94, 5,288.07 and 2,239.68 is: 3,090.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.94 : 5,288.07 = 2,239.68 : x
  2. Step 2: Convert to fraction form
    3,831.94/5,288.07 = 2,239.68/x
  3. Step 3: Cross multiply
    3,831.94x = 5,288.07 × 2,239.68
  4. Step 4: Simplify right side
    3,831.94x = 11,843,560.20
  5. Step 5: Solve for x
    x = 11,843,560.20/3,831.94
  6. Step 6: Final answer
    x = 3,090.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.