Home / 5,286.25-7,298.38-3,299.72

Finding the Fourth Proportional to 5,286.25, 7,298.38 and 3,299.72

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Solution

The fourth proportional to 5,286.25, 7,298.38 and 3,299.72 is: 4,555.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.25 : 7,298.38 = 3,299.72 : x
  2. Step 2: Convert to fraction form
    5,286.25/7,298.38 = 3,299.72/x
  3. Step 3: Cross multiply
    5,286.25x = 7,298.38 × 3,299.72
  4. Step 4: Simplify right side
    5,286.25x = 24,082,610.45
  5. Step 5: Solve for x
    x = 24,082,610.45/5,286.25
  6. Step 6: Final answer
    x = 4,555.71

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1.5x scale

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.