Home / 4,428.80-6,640.32-1,831.04

Finding the Fourth Proportional to 4,428.80, 6,640.32 and 1,831.04

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Solution

The fourth proportional to 4,428.80, 6,640.32 and 1,831.04 is: 2,745.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,428.80 : 6,640.32 = 1,831.04 : x
  2. Step 2: Convert to fraction form
    4,428.80/6,640.32 = 1,831.04/x
  3. Step 3: Cross multiply
    4,428.80x = 6,640.32 × 1,831.04
  4. Step 4: Simplify right side
    4,428.80x = 12,158,691.53
  5. Step 5: Solve for x
    x = 12,158,691.53/4,428.80
  6. Step 6: Final answer
    x = 2,745.37

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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.