Home / 2,665.87-3,998.33-1,204.67

Finding the Fourth Proportional to 2,665.87, 3,998.33 and 1,204.67

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Solution

The fourth proportional to 2,665.87, 3,998.33 and 1,204.67 is: 1,806.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,665.87 : 3,998.33 = 1,204.67 : x
  2. Step 2: Convert to fraction form
    2,665.87/3,998.33 = 1,204.67/x
  3. Step 3: Cross multiply
    2,665.87x = 3,998.33 × 1,204.67
  4. Step 4: Simplify right side
    2,665.87x = 4,816,668.20
  5. Step 5: Solve for x
    x = 4,816,668.20/2,665.87
  6. Step 6: Final answer
    x = 1,806.79

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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.