Home / 3,935.91-5,435.07-2,939.49

Finding the Fourth Proportional to 3,935.91, 5,435.07 and 2,939.49

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Solution

The fourth proportional to 3,935.91, 5,435.07 and 2,939.49 is: 4,059.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,935.91 : 5,435.07 = 2,939.49 : x
  2. Step 2: Convert to fraction form
    3,935.91/5,435.07 = 2,939.49/x
  3. Step 3: Cross multiply
    3,935.91x = 5,435.07 × 2,939.49
  4. Step 4: Simplify right side
    3,935.91x = 15,976,333.91
  5. Step 5: Solve for x
    x = 15,976,333.91/3,935.91
  6. Step 6: Final answer
    x = 4,059.12

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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.