Home / 4,261.31-6,379.98-3,218.03

Finding the Fourth Proportional to 4,261.31, 6,379.98 and 3,218.03

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Solution

The fourth proportional to 4,261.31, 6,379.98 and 3,218.03 is: 4,817.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,261.31 : 6,379.98 = 3,218.03 : x
  2. Step 2: Convert to fraction form
    4,261.31/6,379.98 = 3,218.03/x
  3. Step 3: Cross multiply
    4,261.31x = 6,379.98 × 3,218.03
  4. Step 4: Simplify right side
    4,261.31x = 20,530,935.14
  5. Step 5: Solve for x
    x = 20,530,935.14/4,261.31
  6. Step 6: Final answer
    x = 4,817.99

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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.