Home / 7,821.22-11,734.04-3,144.52

Finding the Fourth Proportional to 7,821.22, 11,734.04 and 3,144.52

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Solution

The fourth proportional to 7,821.22, 11,734.04 and 3,144.52 is: 4,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,821.22 : 11,734.04 = 3,144.52 : x
  2. Step 2: Convert to fraction form
    7,821.22/11,734.04 = 3,144.52/x
  3. Step 3: Cross multiply
    7,821.22x = 11,734.04 × 3,144.52
  4. Step 4: Simplify right side
    7,821.22x = 36,897,923.46
  5. Step 5: Solve for x
    x = 36,897,923.46/7,821.22
  6. Step 6: Final answer
    x = 4,717.67

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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.