Home / 6,121.33-9,179.20-1,960.39

Finding the Fourth Proportional to 6,121.33, 9,179.20 and 1,960.39

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Solution

The fourth proportional to 6,121.33, 9,179.20 and 1,960.39 is: 2,939.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121.33 : 9,179.20 = 1,960.39 : x
  2. Step 2: Convert to fraction form
    6,121.33/9,179.20 = 1,960.39/x
  3. Step 3: Cross multiply
    6,121.33x = 9,179.20 × 1,960.39
  4. Step 4: Simplify right side
    6,121.33x = 17,994,811.89
  5. Step 5: Solve for x
    x = 17,994,811.89/6,121.33
  6. Step 6: Final answer
    x = 2,939.69

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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.