Home / 3,400.68-5,102.38-1,209.56

Finding the Fourth Proportional to 3,400.68, 5,102.38 and 1,209.56

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Solution

The fourth proportional to 3,400.68, 5,102.38 and 1,209.56 is: 1,814.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,400.68 : 5,102.38 = 1,209.56 : x
  2. Step 2: Convert to fraction form
    3,400.68/5,102.38 = 1,209.56/x
  3. Step 3: Cross multiply
    3,400.68x = 5,102.38 × 1,209.56
  4. Step 4: Simplify right side
    3,400.68x = 6,171,634.75
  5. Step 5: Solve for x
    x = 6,171,634.75/3,400.68
  6. Step 6: Final answer
    x = 1,814.82

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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.