Home / 3,924.80-5,414.55-2,431.70

Finding the Fourth Proportional to 3,924.80, 5,414.55 and 2,431.70

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Solution

The fourth proportional to 3,924.80, 5,414.55 and 2,431.70 is: 3,354.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,924.80 : 5,414.55 = 2,431.70 : x
  2. Step 2: Convert to fraction form
    3,924.80/5,414.55 = 2,431.70/x
  3. Step 3: Cross multiply
    3,924.80x = 5,414.55 × 2,431.70
  4. Step 4: Simplify right side
    3,924.80x = 13,166,561.24
  5. Step 5: Solve for x
    x = 13,166,561.24/3,924.80
  6. Step 6: Final answer
    x = 3,354.71

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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.