Home / 5,286.97-7,930.27-2,515.62

Finding the Fourth Proportional to 5,286.97, 7,930.27 and 2,515.62

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Solution

The fourth proportional to 5,286.97, 7,930.27 and 2,515.62 is: 3,773.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.97 : 7,930.27 = 2,515.62 : x
  2. Step 2: Convert to fraction form
    5,286.97/7,930.27 = 2,515.62/x
  3. Step 3: Cross multiply
    5,286.97x = 7,930.27 × 2,515.62
  4. Step 4: Simplify right side
    5,286.97x = 19,949,578.70
  5. Step 5: Solve for x
    x = 19,949,578.70/5,286.97
  6. Step 6: Final answer
    x = 3,773.35

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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.