Home / 5,819.78-8,728.04-4,171.44

Finding the Fourth Proportional to 5,819.78, 8,728.04 and 4,171.44

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Solution

The fourth proportional to 5,819.78, 8,728.04 and 4,171.44 is: 6,255.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,819.78 : 8,728.04 = 4,171.44 : x
  2. Step 2: Convert to fraction form
    5,819.78/8,728.04 = 4,171.44/x
  3. Step 3: Cross multiply
    5,819.78x = 8,728.04 × 4,171.44
  4. Step 4: Simplify right side
    5,819.78x = 36,408,495.18
  5. Step 5: Solve for x
    x = 36,408,495.18/5,819.78
  6. Step 6: Final answer
    x = 6,255.99

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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.