Home / 3,934.38-5,405.15-3,520.22

Finding the Fourth Proportional to 3,934.38, 5,405.15 and 3,520.22

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Solution

The fourth proportional to 3,934.38, 5,405.15 and 3,520.22 is: 4,836.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.38 : 5,405.15 = 3,520.22 : x
  2. Step 2: Convert to fraction form
    3,934.38/5,405.15 = 3,520.22/x
  3. Step 3: Cross multiply
    3,934.38x = 5,405.15 × 3,520.22
  4. Step 4: Simplify right side
    3,934.38x = 19,027,272.51
  5. Step 5: Solve for x
    x = 19,027,272.51/3,934.38
  6. Step 6: Final answer
    x = 4,836.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.