Home / 3,937.11-5,427.39-2,520.64

Finding the Fourth Proportional to 3,937.11, 5,427.39 and 2,520.64

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Solution

The fourth proportional to 3,937.11, 5,427.39 and 2,520.64 is: 3,474.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,937.11 : 5,427.39 = 2,520.64 : x
  2. Step 2: Convert to fraction form
    3,937.11/5,427.39 = 2,520.64/x
  3. Step 3: Cross multiply
    3,937.11x = 5,427.39 × 2,520.64
  4. Step 4: Simplify right side
    3,937.11x = 13,680,496.33
  5. Step 5: Solve for x
    x = 13,680,496.33/3,937.11
  6. Step 6: Final answer
    x = 3,474.76

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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.