Home / 3,898.14-5,379.32-2,219.79

Finding the Fourth Proportional to 3,898.14, 5,379.32 and 2,219.79

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Solution

The fourth proportional to 3,898.14, 5,379.32 and 2,219.79 is: 3,063.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,898.14 : 5,379.32 = 2,219.79 : x
  2. Step 2: Convert to fraction form
    3,898.14/5,379.32 = 2,219.79/x
  3. Step 3: Cross multiply
    3,898.14x = 5,379.32 × 2,219.79
  4. Step 4: Simplify right side
    3,898.14x = 11,940,953.81
  5. Step 5: Solve for x
    x = 11,940,953.81/3,898.14
  6. Step 6: Final answer
    x = 3,063.24

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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.