Home / 5,286.14-7,288.27-3,394.38

Finding the Fourth Proportional to 5,286.14, 7,288.27 and 3,394.38

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Solution

The fourth proportional to 5,286.14, 7,288.27 and 3,394.38 is: 4,680.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,286.14 : 7,288.27 = 3,394.38 : x
  2. Step 2: Convert to fraction form
    5,286.14/7,288.27 = 3,394.38/x
  3. Step 3: Cross multiply
    5,286.14x = 7,288.27 × 3,394.38
  4. Step 4: Simplify right side
    5,286.14x = 24,739,149.44
  5. Step 5: Solve for x
    x = 24,739,149.44/5,286.14
  6. Step 6: Final answer
    x = 4,680.01

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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.