Home / 3,171.24-4,377.90-1,992.96

Finding the Fourth Proportional to 3,171.24, 4,377.90 and 1,992.96

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Solution

The fourth proportional to 3,171.24, 4,377.90 and 1,992.96 is: 2,751.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.24 : 4,377.90 = 1,992.96 : x
  2. Step 2: Convert to fraction form
    3,171.24/4,377.90 = 1,992.96/x
  3. Step 3: Cross multiply
    3,171.24x = 4,377.90 × 1,992.96
  4. Step 4: Simplify right side
    3,171.24x = 8,724,979.58
  5. Step 5: Solve for x
    x = 8,724,979.58/3,171.24
  6. Step 6: Final answer
    x = 2,751.28

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.