Home / 1,519.44-2,279.22-423.96

Finding the Fourth Proportional to 1,519.44, 2,279.22 and 423.96

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Solution

The fourth proportional to 1,519.44, 2,279.22 and 423.96 is: 635.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.44 : 2,279.22 = 423.96 : x
  2. Step 2: Convert to fraction form
    1,519.44/2,279.22 = 423.96/x
  3. Step 3: Cross multiply
    1,519.44x = 2,279.22 × 423.96
  4. Step 4: Simplify right side
    1,519.44x = 966,298.11
  5. Step 5: Solve for x
    x = 966,298.11/1,519.44
  6. Step 6: Final answer
    x = 635.96

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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.