Home / 3,989.62-5,969.85-2,346.94

Finding the Fourth Proportional to 3,989.62, 5,969.85 and 2,346.94

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Solution

The fourth proportional to 3,989.62, 5,969.85 and 2,346.94 is: 3,511.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,989.62 : 5,969.85 = 2,346.94 : x
  2. Step 2: Convert to fraction form
    3,989.62/5,969.85 = 2,346.94/x
  3. Step 3: Cross multiply
    3,989.62x = 5,969.85 × 2,346.94
  4. Step 4: Simplify right side
    3,989.62x = 14,010,879.76
  5. Step 5: Solve for x
    x = 14,010,879.76/3,989.62
  6. Step 6: Final answer
    x = 3,511.83

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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.