Home / 4,121.70-6,180.75-1,199.94

Finding the Fourth Proportional to 4,121.70, 6,180.75 and 1,199.94

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Solution

The fourth proportional to 4,121.70, 6,180.75 and 1,199.94 is: 1,799.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,121.70 : 6,180.75 = 1,199.94 : x
  2. Step 2: Convert to fraction form
    4,121.70/6,180.75 = 1,199.94/x
  3. Step 3: Cross multiply
    4,121.70x = 6,180.75 × 1,199.94
  4. Step 4: Simplify right side
    4,121.70x = 7,416,529.16
  5. Step 5: Solve for x
    x = 7,416,529.16/4,121.70
  6. Step 6: Final answer
    x = 1,799.39

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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.