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Finding the Fourth Proportional to 5,458.44, 8,191.44 and 2,171.22

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Solution

The fourth proportional to 5,458.44, 8,191.44 and 2,171.22 is: 3,258.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,458.44 : 8,191.44 = 2,171.22 : x
  2. Step 2: Convert to fraction form
    5,458.44/8,191.44 = 2,171.22/x
  3. Step 3: Cross multiply
    5,458.44x = 8,191.44 × 2,171.22
  4. Step 4: Simplify right side
    5,458.44x = 17,785,418.36
  5. Step 5: Solve for x
    x = 17,785,418.36/5,458.44
  6. Step 6: Final answer
    x = 3,258.33

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1.5x scale

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.