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Finding the Fourth Proportional to 3,504.87, 5,250.12 and 2,807.76

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Solution

The fourth proportional to 3,504.87, 5,250.12 and 2,807.76 is: 4,205.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,504.87 : 5,250.12 = 2,807.76 : x
  2. Step 2: Convert to fraction form
    3,504.87/5,250.12 = 2,807.76/x
  3. Step 3: Cross multiply
    3,504.87x = 5,250.12 × 2,807.76
  4. Step 4: Simplify right side
    3,504.87x = 14,741,076.93
  5. Step 5: Solve for x
    x = 14,741,076.93/3,504.87
  6. Step 6: Final answer
    x = 4,205.88

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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.