Home / 2,609.80-3,911.27-2,261.71

Finding the Fourth Proportional to 2,609.80, 3,911.27 and 2,261.71

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Solution

The fourth proportional to 2,609.80, 3,911.27 and 2,261.71 is: 3,389.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,609.80 : 3,911.27 = 2,261.71 : x
  2. Step 2: Convert to fraction form
    2,609.80/3,911.27 = 2,261.71/x
  3. Step 3: Cross multiply
    2,609.80x = 3,911.27 × 2,261.71
  4. Step 4: Simplify right side
    2,609.80x = 8,846,142.77
  5. Step 5: Solve for x
    x = 8,846,142.77/2,609.80
  6. Step 6: Final answer
    x = 3,389.58

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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.