Home / 3,414.35-5,120.44-1,332.79

Finding the Fourth Proportional to 3,414.35, 5,120.44 and 1,332.79

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Solution

The fourth proportional to 3,414.35, 5,120.44 and 1,332.79 is: 1,998.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,414.35 : 5,120.44 = 1,332.79 : x
  2. Step 2: Convert to fraction form
    3,414.35/5,120.44 = 1,332.79/x
  3. Step 3: Cross multiply
    3,414.35x = 5,120.44 × 1,332.79
  4. Step 4: Simplify right side
    3,414.35x = 6,824,471.23
  5. Step 5: Solve for x
    x = 6,824,471.23/3,414.35
  6. Step 6: Final answer
    x = 1,998.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.