Home / 3,286.66-4,533.45-2,105.86

Finding the Fourth Proportional to 3,286.66, 4,533.45 and 2,105.86

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Solution

The fourth proportional to 3,286.66, 4,533.45 and 2,105.86 is: 2,904.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,286.66 : 4,533.45 = 2,105.86 : x
  2. Step 2: Convert to fraction form
    3,286.66/4,533.45 = 2,105.86/x
  3. Step 3: Cross multiply
    3,286.66x = 4,533.45 × 2,105.86
  4. Step 4: Simplify right side
    3,286.66x = 9,546,811.02
  5. Step 5: Solve for x
    x = 9,546,811.02/3,286.66
  6. Step 6: Final answer
    x = 2,904.72

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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.