Home / 2,609.89-3,914.30-1,222.85

Finding the Fourth Proportional to 2,609.89, 3,914.30 and 1,222.85

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Solution

The fourth proportional to 2,609.89, 3,914.30 and 1,222.85 is: 1,834.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.89 : 3,914.30 = 1,222.85 : x
  2. Step 2: Convert to fraction form
    2,609.89/3,914.30 = 1,222.85/x
  3. Step 3: Cross multiply
    2,609.89x = 3,914.30 × 1,222.85
  4. Step 4: Simplify right side
    2,609.89x = 4,786,614.60
  5. Step 5: Solve for x
    x = 4,786,614.60/2,609.89
  6. Step 6: Final answer
    x = 1,834.03

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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.