Home / 3,579.68-4,940.64-2,182.88

Finding the Fourth Proportional to 3,579.68, 4,940.64 and 2,182.88

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Solution

The fourth proportional to 3,579.68, 4,940.64 and 2,182.88 is: 3,012.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.68 : 4,940.64 = 2,182.88 : x
  2. Step 2: Convert to fraction form
    3,579.68/4,940.64 = 2,182.88/x
  3. Step 3: Cross multiply
    3,579.68x = 4,940.64 × 2,182.88
  4. Step 4: Simplify right side
    3,579.68x = 10,784,824.24
  5. Step 5: Solve for x
    x = 10,784,824.24/3,579.68
  6. Step 6: Final answer
    x = 3,012.79

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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.