Home / 3,427.83-5,139-3,234.65

Finding the Fourth Proportional to 3,427.83, 5,139 and 3,234.65

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Solution

The fourth proportional to 3,427.83, 5,139 and 3,234.65 is: 4,849.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.83 : 5,139 = 3,234.65 : x
  2. Step 2: Convert to fraction form
    3,427.83/5,139 = 3,234.65/x
  3. Step 3: Cross multiply
    3,427.83x = 5,139 × 3,234.65
  4. Step 4: Simplify right side
    3,427.83x = 16,622,840.66
  5. Step 5: Solve for x
    x = 16,622,840.66/3,427.83
  6. Step 6: Final answer
    x = 4,849.38

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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.