Home / 7,481.27-11,220.84-2,800.64

Finding the Fourth Proportional to 7,481.27, 11,220.84 and 2,800.64

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Solution

The fourth proportional to 7,481.27, 11,220.84 and 2,800.64 is: 4,200.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.27 : 11,220.84 = 2,800.64 : x
  2. Step 2: Convert to fraction form
    7,481.27/11,220.84 = 2,800.64/x
  3. Step 3: Cross multiply
    7,481.27x = 11,220.84 × 2,800.64
  4. Step 4: Simplify right side
    7,481.27x = 31,425,561.39
  5. Step 5: Solve for x
    x = 31,425,561.39/7,481.27
  6. Step 6: Final answer
    x = 4,200.56

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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.