Home / 7,221.22-10,831.83-4,640.56

Finding the Fourth Proportional to 7,221.22, 10,831.83 and 4,640.56

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Solution

The fourth proportional to 7,221.22, 10,831.83 and 4,640.56 is: 6,960.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.22 : 10,831.83 = 4,640.56 : x
  2. Step 2: Convert to fraction form
    7,221.22/10,831.83 = 4,640.56/x
  3. Step 3: Cross multiply
    7,221.22x = 10,831.83 × 4,640.56
  4. Step 4: Simplify right side
    7,221.22x = 50,265,757.02
  5. Step 5: Solve for x
    x = 50,265,757.02/7,221.22
  6. Step 6: Final answer
    x = 6,960.84

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1.5x scale

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.