Home / 3,318.87-4,578.14-2,074.71

Finding the Fourth Proportional to 3,318.87, 4,578.14 and 2,074.71

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Solution

The fourth proportional to 3,318.87, 4,578.14 and 2,074.71 is: 2,861.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,318.87 : 4,578.14 = 2,074.71 : x
  2. Step 2: Convert to fraction form
    3,318.87/4,578.14 = 2,074.71/x
  3. Step 3: Cross multiply
    3,318.87x = 4,578.14 × 2,074.71
  4. Step 4: Simplify right side
    3,318.87x = 9,498,318.03
  5. Step 5: Solve for x
    x = 9,498,318.03/3,318.87
  6. Step 6: Final answer
    x = 2,861.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.