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Finding the Fourth Proportional to 3,720.76, 5,584.74 and 2,736.60

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Solution

The fourth proportional to 3,720.76, 5,584.74 and 2,736.60 is: 4,107.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,720.76 : 5,584.74 = 2,736.60 : x
  2. Step 2: Convert to fraction form
    3,720.76/5,584.74 = 2,736.60/x
  3. Step 3: Cross multiply
    3,720.76x = 5,584.74 × 2,736.60
  4. Step 4: Simplify right side
    3,720.76x = 15,283,199.48
  5. Step 5: Solve for x
    x = 15,283,199.48/3,720.76
  6. Step 6: Final answer
    x = 4,107.55

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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.