Home / 3,412.71-5,120.25-2,104.92

Finding the Fourth Proportional to 3,412.71, 5,120.25 and 2,104.92

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Solution

The fourth proportional to 3,412.71, 5,120.25 and 2,104.92 is: 3,158.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,412.71 : 5,120.25 = 2,104.92 : x
  2. Step 2: Convert to fraction form
    3,412.71/5,120.25 = 2,104.92/x
  3. Step 3: Cross multiply
    3,412.71x = 5,120.25 × 2,104.92
  4. Step 4: Simplify right side
    3,412.71x = 10,777,716.63
  5. Step 5: Solve for x
    x = 10,777,716.63/3,412.71
  6. Step 6: Final answer
    x = 3,158.11

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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.