Home / 4,481.13-6,721.85-2,141.40

Finding the Fourth Proportional to 4,481.13, 6,721.85 and 2,141.40

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Solution

The fourth proportional to 4,481.13, 6,721.85 and 2,141.40 is: 3,212.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,481.13 : 6,721.85 = 2,141.40 : x
  2. Step 2: Convert to fraction form
    4,481.13/6,721.85 = 2,141.40/x
  3. Step 3: Cross multiply
    4,481.13x = 6,721.85 × 2,141.40
  4. Step 4: Simplify right side
    4,481.13x = 14,394,158.88
  5. Step 5: Solve for x
    x = 14,394,158.88/4,481.13
  6. Step 6: Final answer
    x = 3,212.17

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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.