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Finding the Fourth Proportional to 3,797.70, 5,708.70 and 2,709.60

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Solution

The fourth proportional to 3,797.70, 5,708.70 and 2,709.60 is: 4,073.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,797.70 : 5,708.70 = 2,709.60 : x
  2. Step 2: Convert to fraction form
    3,797.70/5,708.70 = 2,709.60/x
  3. Step 3: Cross multiply
    3,797.70x = 5,708.70 × 2,709.60
  4. Step 4: Simplify right side
    3,797.70x = 15,468,293.52
  5. Step 5: Solve for x
    x = 15,468,293.52/3,797.70
  6. Step 6: Final answer
    x = 4,073.07

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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.