Home / 3,949.11-5,920.83-1,868.02

Finding the Fourth Proportional to 3,949.11, 5,920.83 and 1,868.02

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Solution

The fourth proportional to 3,949.11, 5,920.83 and 1,868.02 is: 2,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,949.11 : 5,920.83 = 1,868.02 : x
  2. Step 2: Convert to fraction form
    3,949.11/5,920.83 = 1,868.02/x
  3. Step 3: Cross multiply
    3,949.11x = 5,920.83 × 1,868.02
  4. Step 4: Simplify right side
    3,949.11x = 11,060,214.05
  5. Step 5: Solve for x
    x = 11,060,214.05/3,949.11
  6. Step 6: Final answer
    x = 2,800.69

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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.