Home / 3,961.50-5,942.21-3,720.93

Finding the Fourth Proportional to 3,961.50, 5,942.21 and 3,720.93

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Solution

The fourth proportional to 3,961.50, 5,942.21 and 3,720.93 is: 5,581.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,961.50 : 5,942.21 = 3,720.93 : x
  2. Step 2: Convert to fraction form
    3,961.50/5,942.21 = 3,720.93/x
  3. Step 3: Cross multiply
    3,961.50x = 5,942.21 × 3,720.93
  4. Step 4: Simplify right side
    3,961.50x = 22,110,528.85
  5. Step 5: Solve for x
    x = 22,110,528.85/3,961.50
  6. Step 6: Final answer
    x = 5,581.35

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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.