Home / 3,215.84-4,815.97-2,225.88

Finding the Fourth Proportional to 3,215.84, 4,815.97 and 2,225.88

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Solution

The fourth proportional to 3,215.84, 4,815.97 and 2,225.88 is: 3,333.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,215.84 : 4,815.97 = 2,225.88 : x
  2. Step 2: Convert to fraction form
    3,215.84/4,815.97 = 2,225.88/x
  3. Step 3: Cross multiply
    3,215.84x = 4,815.97 × 2,225.88
  4. Step 4: Simplify right side
    3,215.84x = 10,719,759.26
  5. Step 5: Solve for x
    x = 10,719,759.26/3,215.84
  6. Step 6: Final answer
    x = 3,333.43

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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.