Home / 3,932.36-5,431.38-3,414.86

Finding the Fourth Proportional to 3,932.36, 5,431.38 and 3,414.86

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Solution

The fourth proportional to 3,932.36, 5,431.38 and 3,414.86 is: 4,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,932.36 : 5,431.38 = 3,414.86 : x
  2. Step 2: Convert to fraction form
    3,932.36/5,431.38 = 3,414.86/x
  3. Step 3: Cross multiply
    3,932.36x = 5,431.38 × 3,414.86
  4. Step 4: Simplify right side
    3,932.36x = 18,547,402.31
  5. Step 5: Solve for x
    x = 18,547,402.31/3,932.36
  6. Step 6: Final answer
    x = 4,716.61

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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.