Home / 8,125.83-12,190.46-2,578.44

Finding the Fourth Proportional to 8,125.83, 12,190.46 and 2,578.44

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Solution

The fourth proportional to 8,125.83, 12,190.46 and 2,578.44 is: 3,868.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,125.83 : 12,190.46 = 2,578.44 : x
  2. Step 2: Convert to fraction form
    8,125.83/12,190.46 = 2,578.44/x
  3. Step 3: Cross multiply
    8,125.83x = 12,190.46 × 2,578.44
  4. Step 4: Simplify right side
    8,125.83x = 31,432,369.68
  5. Step 5: Solve for x
    x = 31,432,369.68/8,125.83
  6. Step 6: Final answer
    x = 3,868.20

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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.