Home / 7,221.20-10,831.86-2,541.24

Finding the Fourth Proportional to 7,221.20, 10,831.86 and 2,541.24

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Solution

The fourth proportional to 7,221.20, 10,831.86 and 2,541.24 is: 3,811.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.20 : 10,831.86 = 2,541.24 : x
  2. Step 2: Convert to fraction form
    7,221.20/10,831.86 = 2,541.24/x
  3. Step 3: Cross multiply
    7,221.20x = 10,831.86 × 2,541.24
  4. Step 4: Simplify right side
    7,221.20x = 27,526,355.91
  5. Step 5: Solve for x
    x = 27,526,355.91/7,221.20
  6. Step 6: Final answer
    x = 3,811.88

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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.