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Finding the Fourth Proportional to 7,481.74, 11,220.48 and 2,550.25

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Solution

The fourth proportional to 7,481.74, 11,220.48 and 2,550.25 is: 3,824.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481.74 : 11,220.48 = 2,550.25 : x
  2. Step 2: Convert to fraction form
    7,481.74/11,220.48 = 2,550.25/x
  3. Step 3: Cross multiply
    7,481.74x = 11,220.48 × 2,550.25
  4. Step 4: Simplify right side
    7,481.74x = 28,615,029.12
  5. Step 5: Solve for x
    x = 28,615,029.12/7,481.74
  6. Step 6: Final answer
    x = 3,824.65

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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.