Home / 6,722.20-10,081.95-3,212.20

Finding the Fourth Proportional to 6,722.20, 10,081.95 and 3,212.20

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Solution

The fourth proportional to 6,722.20, 10,081.95 and 3,212.20 is: 4,817.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.20 : 10,081.95 = 3,212.20 : x
  2. Step 2: Convert to fraction form
    6,722.20/10,081.95 = 3,212.20/x
  3. Step 3: Cross multiply
    6,722.20x = 10,081.95 × 3,212.20
  4. Step 4: Simplify right side
    6,722.20x = 32,385,239.79
  5. Step 5: Solve for x
    x = 32,385,239.79/6,722.20
  6. Step 6: Final answer
    x = 4,817.65

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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.