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Finding the Fourth Proportional to 7,481, 11,220.06 and 2,550.60

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Solution

The fourth proportional to 7,481, 11,220.06 and 2,550.60 is: 3,825.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,481 : 11,220.06 = 2,550.60 : x
  2. Step 2: Convert to fraction form
    7,481/11,220.06 = 2,550.60/x
  3. Step 3: Cross multiply
    7,481x = 11,220.06 × 2,550.60
  4. Step 4: Simplify right side
    7,481x = 28,617,885.04
  5. Step 5: Solve for x
    x = 28,617,885.04/7,481
  6. Step 6: Final answer
    x = 3,825.41

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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.