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Finding the Fourth Proportional to 7,212.66, 10,820.90 and 3,052.84

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Solution

The fourth proportional to 7,212.66, 10,820.90 and 3,052.84 is: 4,580.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,212.66 : 10,820.90 = 3,052.84 : x
  2. Step 2: Convert to fraction form
    7,212.66/10,820.90 = 3,052.84/x
  3. Step 3: Cross multiply
    7,212.66x = 10,820.90 × 3,052.84
  4. Step 4: Simplify right side
    7,212.66x = 33,034,481.52
  5. Step 5: Solve for x
    x = 33,034,481.52/7,212.66
  6. Step 6: Final answer
    x = 4,580.07

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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.