Home / 1,579.27-2,179.59-949.83

Finding the Fourth Proportional to 1,579.27, 2,179.59 and 949.83

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Solution

The fourth proportional to 1,579.27, 2,179.59 and 949.83 is: 1,310.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579.27 : 2,179.59 = 949.83 : x
  2. Step 2: Convert to fraction form
    1,579.27/2,179.59 = 949.83/x
  3. Step 3: Cross multiply
    1,579.27x = 2,179.59 × 949.83
  4. Step 4: Simplify right side
    1,579.27x = 2,070,239.97
  5. Step 5: Solve for x
    x = 2,070,239.97/1,579.27
  6. Step 6: Final answer
    x = 1,310.88

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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.