Home / 3,505.87-5,251.62-2,808.76

Finding the Fourth Proportional to 3,505.87, 5,251.62 and 2,808.76

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Solution

The fourth proportional to 3,505.87, 5,251.62 and 2,808.76 is: 4,207.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,505.87 : 5,251.62 = 2,808.76 : x
  2. Step 2: Convert to fraction form
    3,505.87/5,251.62 = 2,808.76/x
  3. Step 3: Cross multiply
    3,505.87x = 5,251.62 × 2,808.76
  4. Step 4: Simplify right side
    3,505.87x = 14,750,540.19
  5. Step 5: Solve for x
    x = 14,750,540.19/3,505.87
  6. Step 6: Final answer
    x = 4,207.38

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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.