Home / 3,218.82-4,828.23-2,071.86

Finding the Fourth Proportional to 3,218.82, 4,828.23 and 2,071.86

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Solution

The fourth proportional to 3,218.82, 4,828.23 and 2,071.86 is: 3,107.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,218.82 : 4,828.23 = 2,071.86 : x
  2. Step 2: Convert to fraction form
    3,218.82/4,828.23 = 2,071.86/x
  3. Step 3: Cross multiply
    3,218.82x = 4,828.23 × 2,071.86
  4. Step 4: Simplify right side
    3,218.82x = 10,003,416.61
  5. Step 5: Solve for x
    x = 10,003,416.61/3,218.82
  6. Step 6: Final answer
    x = 3,107.79

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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.