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Finding the Fourth Proportional to 3,391.02, 5,080.25 and 1,748.57

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Solution

The fourth proportional to 3,391.02, 5,080.25 and 1,748.57 is: 2,619.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,391.02 : 5,080.25 = 1,748.57 : x
  2. Step 2: Convert to fraction form
    3,391.02/5,080.25 = 1,748.57/x
  3. Step 3: Cross multiply
    3,391.02x = 5,080.25 × 1,748.57
  4. Step 4: Simplify right side
    3,391.02x = 8,883,138.60
  5. Step 5: Solve for x
    x = 8,883,138.60/3,391.02
  6. Step 6: Final answer
    x = 2,619.61

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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.