Home / 3,214.20-4,821.30-1,481.88

Finding the Fourth Proportional to 3,214.20, 4,821.30 and 1,481.88

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Solution

The fourth proportional to 3,214.20, 4,821.30 and 1,481.88 is: 2,222.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.20 : 4,821.30 = 1,481.88 : x
  2. Step 2: Convert to fraction form
    3,214.20/4,821.30 = 1,481.88/x
  3. Step 3: Cross multiply
    3,214.20x = 4,821.30 × 1,481.88
  4. Step 4: Simplify right side
    3,214.20x = 7,144,588.04
  5. Step 5: Solve for x
    x = 7,144,588.04/3,214.20
  6. Step 6: Final answer
    x = 2,222.82

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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.