Home / 5,393.66-8,091.77-2,105.87

Finding the Fourth Proportional to 5,393.66, 8,091.77 and 2,105.87

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Solution

The fourth proportional to 5,393.66, 8,091.77 and 2,105.87 is: 3,159.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.66 : 8,091.77 = 2,105.87 : x
  2. Step 2: Convert to fraction form
    5,393.66/8,091.77 = 2,105.87/x
  3. Step 3: Cross multiply
    5,393.66x = 8,091.77 × 2,105.87
  4. Step 4: Simplify right side
    5,393.66x = 17,040,164.70
  5. Step 5: Solve for x
    x = 17,040,164.70/5,393.66
  6. Step 6: Final answer
    x = 3,159.30

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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.