Home / 4,462.26-6,689.40-2,120.82

Finding the Fourth Proportional to 4,462.26, 6,689.40 and 2,120.82

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Solution

The fourth proportional to 4,462.26, 6,689.40 and 2,120.82 is: 3,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,462.26 : 6,689.40 = 2,120.82 : x
  2. Step 2: Convert to fraction form
    4,462.26/6,689.40 = 2,120.82/x
  3. Step 3: Cross multiply
    4,462.26x = 6,689.40 × 2,120.82
  4. Step 4: Simplify right side
    4,462.26x = 14,187,013.31
  5. Step 5: Solve for x
    x = 14,187,013.31/4,462.26
  6. Step 6: Final answer
    x = 3,179.33

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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.