Home / 3,831.14-5,286.79-2,237.87

Finding the Fourth Proportional to 3,831.14, 5,286.79 and 2,237.87

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Solution

The fourth proportional to 3,831.14, 5,286.79 and 2,237.87 is: 3,088.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.14 : 5,286.79 = 2,237.87 : x
  2. Step 2: Convert to fraction form
    3,831.14/5,286.79 = 2,237.87/x
  3. Step 3: Cross multiply
    3,831.14x = 5,286.79 × 2,237.87
  4. Step 4: Simplify right side
    3,831.14x = 11,831,148.74
  5. Step 5: Solve for x
    x = 11,831,148.74/3,831.14
  6. Step 6: Final answer
    x = 3,088.15

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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.