Home / 5,213.35-7,821.04-2,251.79

Finding the Fourth Proportional to 5,213.35, 7,821.04 and 2,251.79

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Solution

The fourth proportional to 5,213.35, 7,821.04 and 2,251.79 is: 3,378.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.35 : 7,821.04 = 2,251.79 : x
  2. Step 2: Convert to fraction form
    5,213.35/7,821.04 = 2,251.79/x
  3. Step 3: Cross multiply
    5,213.35x = 7,821.04 × 2,251.79
  4. Step 4: Simplify right side
    5,213.35x = 17,611,339.66
  5. Step 5: Solve for x
    x = 17,611,339.66/5,213.35
  6. Step 6: Final answer
    x = 3,378.12

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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.