Home / 6,728.72-10,087.40-3,216.80

Finding the Fourth Proportional to 6,728.72, 10,087.40 and 3,216.80

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Solution

The fourth proportional to 6,728.72, 10,087.40 and 3,216.80 is: 4,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,728.72 : 10,087.40 = 3,216.80 : x
  2. Step 2: Convert to fraction form
    6,728.72/10,087.40 = 3,216.80/x
  3. Step 3: Cross multiply
    6,728.72x = 10,087.40 × 3,216.80
  4. Step 4: Simplify right side
    6,728.72x = 32,449,148.32
  5. Step 5: Solve for x
    x = 32,449,148.32/6,728.72
  6. Step 6: Final answer
    x = 4,822.48

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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.