Home / 3,831.06-5,286.38-2,152.24

Finding the Fourth Proportional to 3,831.06, 5,286.38 and 2,152.24

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Solution

The fourth proportional to 3,831.06, 5,286.38 and 2,152.24 is: 2,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.06 : 5,286.38 = 2,152.24 : x
  2. Step 2: Convert to fraction form
    3,831.06/5,286.38 = 2,152.24/x
  3. Step 3: Cross multiply
    3,831.06x = 5,286.38 × 2,152.24
  4. Step 4: Simplify right side
    3,831.06x = 11,377,558.49
  5. Step 5: Solve for x
    x = 11,377,558.49/3,831.06
  6. Step 6: Final answer
    x = 2,969.82

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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.