Home / 3,081.06-4,251.87-1,683.90

Finding the Fourth Proportional to 3,081.06, 4,251.87 and 1,683.90

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Solution

The fourth proportional to 3,081.06, 4,251.87 and 1,683.90 is: 2,323.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081.06 : 4,251.87 = 1,683.90 : x
  2. Step 2: Convert to fraction form
    3,081.06/4,251.87 = 1,683.90/x
  3. Step 3: Cross multiply
    3,081.06x = 4,251.87 × 1,683.90
  4. Step 4: Simplify right side
    3,081.06x = 7,159,723.89
  5. Step 5: Solve for x
    x = 7,159,723.89/3,081.06
  6. Step 6: Final answer
    x = 2,323.79

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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.