Home / 2,609.19-3,912.54-1,513.86

Finding the Fourth Proportional to 2,609.19, 3,912.54 and 1,513.86

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Solution

The fourth proportional to 2,609.19, 3,912.54 and 1,513.86 is: 2,270.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.19 : 3,912.54 = 1,513.86 : x
  2. Step 2: Convert to fraction form
    2,609.19/3,912.54 = 1,513.86/x
  3. Step 3: Cross multiply
    2,609.19x = 3,912.54 × 1,513.86
  4. Step 4: Simplify right side
    2,609.19x = 5,923,037.80
  5. Step 5: Solve for x
    x = 5,923,037.80/2,609.19
  6. Step 6: Final answer
    x = 2,270.07

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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.