Home / 3,960.46-5,465.20-2,191.96

Finding the Fourth Proportional to 3,960.46, 5,465.20 and 2,191.96

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Solution

The fourth proportional to 3,960.46, 5,465.20 and 2,191.96 is: 3,024.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.46 : 5,465.20 = 2,191.96 : x
  2. Step 2: Convert to fraction form
    3,960.46/5,465.20 = 2,191.96/x
  3. Step 3: Cross multiply
    3,960.46x = 5,465.20 × 2,191.96
  4. Step 4: Simplify right side
    3,960.46x = 11,979,499.79
  5. Step 5: Solve for x
    x = 11,979,499.79/3,960.46
  6. Step 6: Final answer
    x = 3,024.77

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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.