Home / 1,519.14-2,279.09-479.27

Finding the Fourth Proportional to 1,519.14, 2,279.09 and 479.27

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Solution

The fourth proportional to 1,519.14, 2,279.09 and 479.27 is: 719.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,519.14 : 2,279.09 = 479.27 : x
  2. Step 2: Convert to fraction form
    1,519.14/2,279.09 = 479.27/x
  3. Step 3: Cross multiply
    1,519.14x = 2,279.09 × 479.27
  4. Step 4: Simplify right side
    1,519.14x = 1,092,299.46
  5. Step 5: Solve for x
    x = 1,092,299.46/1,519.14
  6. Step 6: Final answer
    x = 719.02

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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.