Home / 6,949.70-10,419.94-3,831.20

Finding the Fourth Proportional to 6,949.70, 10,419.94 and 3,831.20

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Solution

The fourth proportional to 6,949.70, 10,419.94 and 3,831.20 is: 5,744.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,949.70 : 10,419.94 = 3,831.20 : x
  2. Step 2: Convert to fraction form
    6,949.70/10,419.94 = 3,831.20/x
  3. Step 3: Cross multiply
    6,949.70x = 10,419.94 × 3,831.20
  4. Step 4: Simplify right side
    6,949.70x = 39,920,874.13
  5. Step 5: Solve for x
    x = 39,920,874.13/6,949.70
  6. Step 6: Final answer
    x = 5,744.26

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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.