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Finding the Fourth Proportional to 3,750.88, 5,620.92 and 2,755.88

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Solution

The fourth proportional to 3,750.88, 5,620.92 and 2,755.88 is: 4,129.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,750.88 : 5,620.92 = 2,755.88 : x
  2. Step 2: Convert to fraction form
    3,750.88/5,620.92 = 2,755.88/x
  3. Step 3: Cross multiply
    3,750.88x = 5,620.92 × 2,755.88
  4. Step 4: Simplify right side
    3,750.88x = 15,490,581.01
  5. Step 5: Solve for x
    x = 15,490,581.01/3,750.88
  6. Step 6: Final answer
    x = 4,129.85

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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.