Home / 3,960.70-5,465.59-2,192.19

Finding the Fourth Proportional to 3,960.70, 5,465.59 and 2,192.19

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Solution

The fourth proportional to 3,960.70, 5,465.59 and 2,192.19 is: 3,025.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,960.70 : 5,465.59 = 2,192.19 : x
  2. Step 2: Convert to fraction form
    3,960.70/5,465.59 = 2,192.19/x
  3. Step 3: Cross multiply
    3,960.70x = 5,465.59 × 2,192.19
  4. Step 4: Simplify right side
    3,960.70x = 11,981,573.45
  5. Step 5: Solve for x
    x = 11,981,573.45/3,960.70
  6. Step 6: Final answer
    x = 3,025.12

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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.