Home / 3,519.20-5,277.28-1,329.68

Finding the Fourth Proportional to 3,519.20, 5,277.28 and 1,329.68

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Solution

The fourth proportional to 3,519.20, 5,277.28 and 1,329.68 is: 1,993.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,519.20 : 5,277.28 = 1,329.68 : x
  2. Step 2: Convert to fraction form
    3,519.20/5,277.28 = 1,329.68/x
  3. Step 3: Cross multiply
    3,519.20x = 5,277.28 × 1,329.68
  4. Step 4: Simplify right side
    3,519.20x = 7,017,093.67
  5. Step 5: Solve for x
    x = 7,017,093.67/3,519.20
  6. Step 6: Final answer
    x = 1,993.95

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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.