Home / 3,985.46-5,500.62-2,306.58

Finding the Fourth Proportional to 3,985.46, 5,500.62 and 2,306.58

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Solution

The fourth proportional to 3,985.46, 5,500.62 and 2,306.58 is: 3,183.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,985.46 : 5,500.62 = 2,306.58 : x
  2. Step 2: Convert to fraction form
    3,985.46/5,500.62 = 2,306.58/x
  3. Step 3: Cross multiply
    3,985.46x = 5,500.62 × 2,306.58
  4. Step 4: Simplify right side
    3,985.46x = 12,687,620.08
  5. Step 5: Solve for x
    x = 12,687,620.08/3,985.46
  6. Step 6: Final answer
    x = 3,183.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.