Home / 3,520.87-5,282.20-1,329.62

Finding the Fourth Proportional to 3,520.87, 5,282.20 and 1,329.62

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Solution

The fourth proportional to 3,520.87, 5,282.20 and 1,329.62 is: 1,994.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,520.87 : 5,282.20 = 1,329.62 : x
  2. Step 2: Convert to fraction form
    3,520.87/5,282.20 = 1,329.62/x
  3. Step 3: Cross multiply
    3,520.87x = 5,282.20 × 1,329.62
  4. Step 4: Simplify right side
    3,520.87x = 7,023,286.54
  5. Step 5: Solve for x
    x = 7,023,286.54/3,520.87
  6. Step 6: Final answer
    x = 1,994.76

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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.