Home / 3,950.45-5,921.43-2,099.70

Finding the Fourth Proportional to 3,950.45, 5,921.43 and 2,099.70

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Solution

The fourth proportional to 3,950.45, 5,921.43 and 2,099.70 is: 3,147.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,950.45 : 5,921.43 = 2,099.70 : x
  2. Step 2: Convert to fraction form
    3,950.45/5,921.43 = 2,099.70/x
  3. Step 3: Cross multiply
    3,950.45x = 5,921.43 × 2,099.70
  4. Step 4: Simplify right side
    3,950.45x = 12,433,240.90
  5. Step 5: Solve for x
    x = 12,433,240.90/3,950.45
  6. Step 6: Final answer
    x = 3,147.30

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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.