Home / 3,679.30-5,514.94-1,831.80

Finding the Fourth Proportional to 3,679.30, 5,514.94 and 1,831.80

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Solution

The fourth proportional to 3,679.30, 5,514.94 and 1,831.80 is: 2,745.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,679.30 : 5,514.94 = 1,831.80 : x
  2. Step 2: Convert to fraction form
    3,679.30/5,514.94 = 1,831.80/x
  3. Step 3: Cross multiply
    3,679.30x = 5,514.94 × 1,831.80
  4. Step 4: Simplify right side
    3,679.30x = 10,102,267.09
  5. Step 5: Solve for x
    x = 10,102,267.09/3,679.30
  6. Step 6: Final answer
    x = 2,745.70

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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.