Home / 5,107.58-7,664.61-2,185.88

Finding the Fourth Proportional to 5,107.58, 7,664.61 and 2,185.88

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Solution

The fourth proportional to 5,107.58, 7,664.61 and 2,185.88 is: 3,280.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,107.58 : 7,664.61 = 2,185.88 : x
  2. Step 2: Convert to fraction form
    5,107.58/7,664.61 = 2,185.88/x
  3. Step 3: Cross multiply
    5,107.58x = 7,664.61 × 2,185.88
  4. Step 4: Simplify right side
    5,107.58x = 16,753,879.38
  5. Step 5: Solve for x
    x = 16,753,879.38/5,107.58
  6. Step 6: Final answer
    x = 3,280.20

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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.