Home / 3,867.56-5,790.46-2,221.64

Finding the Fourth Proportional to 3,867.56, 5,790.46 and 2,221.64

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Solution

The fourth proportional to 3,867.56, 5,790.46 and 2,221.64 is: 3,326.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,867.56 : 5,790.46 = 2,221.64 : x
  2. Step 2: Convert to fraction form
    3,867.56/5,790.46 = 2,221.64/x
  3. Step 3: Cross multiply
    3,867.56x = 5,790.46 × 2,221.64
  4. Step 4: Simplify right side
    3,867.56x = 12,864,317.55
  5. Step 5: Solve for x
    x = 12,864,317.55/3,867.56
  6. Step 6: Final answer
    x = 3,326.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.