Home / 2,609.74-3,912.98-1,376.38

Finding the Fourth Proportional to 2,609.74, 3,912.98 and 1,376.38

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Solution

The fourth proportional to 2,609.74, 3,912.98 and 1,376.38 is: 2,063.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.74 : 3,912.98 = 1,376.38 : x
  2. Step 2: Convert to fraction form
    2,609.74/3,912.98 = 1,376.38/x
  3. Step 3: Cross multiply
    2,609.74x = 3,912.98 × 1,376.38
  4. Step 4: Simplify right side
    2,609.74x = 5,385,747.41
  5. Step 5: Solve for x
    x = 5,385,747.41/2,609.74
  6. Step 6: Final answer
    x = 2,063.71

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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.