Home / 5,382.57-7,427.84-3,286.70

Finding the Fourth Proportional to 5,382.57, 7,427.84 and 3,286.70

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Solution

The fourth proportional to 5,382.57, 7,427.84 and 3,286.70 is: 4,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,382.57 : 7,427.84 = 3,286.70 : x
  2. Step 2: Convert to fraction form
    5,382.57/7,427.84 = 3,286.70/x
  3. Step 3: Cross multiply
    5,382.57x = 7,427.84 × 3,286.70
  4. Step 4: Simplify right side
    5,382.57x = 24,413,052.81
  5. Step 5: Solve for x
    x = 24,413,052.81/5,382.57
  6. Step 6: Final answer
    x = 4,535.58

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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.