Home / 4,942.26-6,819.84-2,817.90

Finding the Fourth Proportional to 4,942.26, 6,819.84 and 2,817.90

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Solution

The fourth proportional to 4,942.26, 6,819.84 and 2,817.90 is: 3,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,942.26 : 6,819.84 = 2,817.90 : x
  2. Step 2: Convert to fraction form
    4,942.26/6,819.84 = 2,817.90/x
  3. Step 3: Cross multiply
    4,942.26x = 6,819.84 × 2,817.90
  4. Step 4: Simplify right side
    4,942.26x = 19,217,627.14
  5. Step 5: Solve for x
    x = 19,217,627.14/4,942.26
  6. Step 6: Final answer
    x = 3,888.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.