Home / 3,831.17-5,286.67-2,338.54

Finding the Fourth Proportional to 3,831.17, 5,286.67 and 2,338.54

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Solution

The fourth proportional to 3,831.17, 5,286.67 and 2,338.54 is: 3,226.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,831.17 : 5,286.67 = 2,338.54 : x
  2. Step 2: Convert to fraction form
    3,831.17/5,286.67 = 2,338.54/x
  3. Step 3: Cross multiply
    3,831.17x = 5,286.67 × 2,338.54
  4. Step 4: Simplify right side
    3,831.17x = 12,363,070.20
  5. Step 5: Solve for x
    x = 12,363,070.20/3,831.17
  6. Step 6: Final answer
    x = 3,226.97

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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.