Home / 3,217.44-4,822.56-2,122.56

Finding the Fourth Proportional to 3,217.44, 4,822.56 and 2,122.56

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Solution

The fourth proportional to 3,217.44, 4,822.56 and 2,122.56 is: 3,181.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217.44 : 4,822.56 = 2,122.56 : x
  2. Step 2: Convert to fraction form
    3,217.44/4,822.56 = 2,122.56/x
  3. Step 3: Cross multiply
    3,217.44x = 4,822.56 × 2,122.56
  4. Step 4: Simplify right side
    3,217.44x = 10,236,172.95
  5. Step 5: Solve for x
    x = 10,236,172.95/3,217.44
  6. Step 6: Final answer
    x = 3,181.47

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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.