Home / 3,171.06-4,376.19-1,992.90

Finding the Fourth Proportional to 3,171.06, 4,376.19 and 1,992.90

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Solution

The fourth proportional to 3,171.06, 4,376.19 and 1,992.90 is: 2,750.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,171.06 : 4,376.19 = 1,992.90 : x
  2. Step 2: Convert to fraction form
    3,171.06/4,376.19 = 1,992.90/x
  3. Step 3: Cross multiply
    3,171.06x = 4,376.19 × 1,992.90
  4. Step 4: Simplify right side
    3,171.06x = 8,721,309.05
  5. Step 5: Solve for x
    x = 8,721,309.05/3,171.06
  6. Step 6: Final answer
    x = 2,750.28

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1.5x scale

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.