Home / 3,528.37-5,286.78-2,137.49

Finding the Fourth Proportional to 3,528.37, 5,286.78 and 2,137.49

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Solution

The fourth proportional to 3,528.37, 5,286.78 and 2,137.49 is: 3,202.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,528.37 : 5,286.78 = 2,137.49 : x
  2. Step 2: Convert to fraction form
    3,528.37/5,286.78 = 2,137.49/x
  3. Step 3: Cross multiply
    3,528.37x = 5,286.78 × 2,137.49
  4. Step 4: Simplify right side
    3,528.37x = 11,300,439.38
  5. Step 5: Solve for x
    x = 11,300,439.38/3,528.37
  6. Step 6: Final answer
    x = 3,202.74

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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.