Home / 8,571.30-12,857.86-2,331.42

Finding the Fourth Proportional to 8,571.30, 12,857.86 and 2,331.42

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Solution

The fourth proportional to 8,571.30, 12,857.86 and 2,331.42 is: 3,497.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571.30 : 12,857.86 = 2,331.42 : x
  2. Step 2: Convert to fraction form
    8,571.30/12,857.86 = 2,331.42/x
  3. Step 3: Cross multiply
    8,571.30x = 12,857.86 × 2,331.42
  4. Step 4: Simplify right side
    8,571.30x = 29,977,033.22
  5. Step 5: Solve for x
    x = 29,977,033.22/8,571.30
  6. Step 6: Final answer
    x = 3,497.37

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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.