Home / 3,318.14-4,976.89-2,081.81

Finding the Fourth Proportional to 3,318.14, 4,976.89 and 2,081.81

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Solution

The fourth proportional to 3,318.14, 4,976.89 and 2,081.81 is: 3,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.14 : 4,976.89 = 2,081.81 : x
  2. Step 2: Convert to fraction form
    3,318.14/4,976.89 = 2,081.81/x
  3. Step 3: Cross multiply
    3,318.14x = 4,976.89 × 2,081.81
  4. Step 4: Simplify right side
    3,318.14x = 10,360,939.37
  5. Step 5: Solve for x
    x = 10,360,939.37/3,318.14
  6. Step 6: Final answer
    x = 3,122.51

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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.