Home / 4,292.72-6,439.09-1,519.39

Finding the Fourth Proportional to 4,292.72, 6,439.09 and 1,519.39

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Solution

The fourth proportional to 4,292.72, 6,439.09 and 1,519.39 is: 2,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,292.72 : 6,439.09 = 1,519.39 : x
  2. Step 2: Convert to fraction form
    4,292.72/6,439.09 = 1,519.39/x
  3. Step 3: Cross multiply
    4,292.72x = 6,439.09 × 1,519.39
  4. Step 4: Simplify right side
    4,292.72x = 9,783,469.06
  5. Step 5: Solve for x
    x = 9,783,469.06/4,292.72
  6. Step 6: Final answer
    x = 2,279.09

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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.