Home / 3,960.68-5,465.96-2,192.48

Finding the Fourth Proportional to 3,960.68, 5,465.96 and 2,192.48

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Solution

The fourth proportional to 3,960.68, 5,465.96 and 2,192.48 is: 3,025.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.68 : 5,465.96 = 2,192.48 : x
  2. Step 2: Convert to fraction form
    3,960.68/5,465.96 = 2,192.48/x
  3. Step 3: Cross multiply
    3,960.68x = 5,465.96 × 2,192.48
  4. Step 4: Simplify right side
    3,960.68x = 11,984,007.98
  5. Step 5: Solve for x
    x = 11,984,007.98/3,960.68
  6. Step 6: Final answer
    x = 3,025.75

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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.