Home / 6,728.20-10,087.98-2,831.56

Finding the Fourth Proportional to 6,728.20, 10,087.98 and 2,831.56

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Solution

The fourth proportional to 6,728.20, 10,087.98 and 2,831.56 is: 4,245.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.20 : 10,087.98 = 2,831.56 : x
  2. Step 2: Convert to fraction form
    6,728.20/10,087.98 = 2,831.56/x
  3. Step 3: Cross multiply
    6,728.20x = 10,087.98 × 2,831.56
  4. Step 4: Simplify right side
    6,728.20x = 28,564,720.65
  5. Step 5: Solve for x
    x = 28,564,720.65/6,728.20
  6. Step 6: Final answer
    x = 4,245.52

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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.