Home / 3,960.23-5,465.14-2,191.79

Finding the Fourth Proportional to 3,960.23, 5,465.14 and 2,191.79

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Solution

The fourth proportional to 3,960.23, 5,465.14 and 2,191.79 is: 3,024.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.23 : 5,465.14 = 2,191.79 : x
  2. Step 2: Convert to fraction form
    3,960.23/5,465.14 = 2,191.79/x
  3. Step 3: Cross multiply
    3,960.23x = 5,465.14 × 2,191.79
  4. Step 4: Simplify right side
    3,960.23x = 11,978,447.38
  5. Step 5: Solve for x
    x = 11,978,447.38/3,960.23
  6. Step 6: Final answer
    x = 3,024.69

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1.5x scale

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.