Home / 3,992.08-5,497.18-3,903.57

Finding the Fourth Proportional to 3,992.08, 5,497.18 and 3,903.57

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Solution

The fourth proportional to 3,992.08, 5,497.18 and 3,903.57 is: 5,375.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,992.08 : 5,497.18 = 3,903.57 : x
  2. Step 2: Convert to fraction form
    3,992.08/5,497.18 = 3,903.57/x
  3. Step 3: Cross multiply
    3,992.08x = 5,497.18 × 3,903.57
  4. Step 4: Simplify right side
    3,992.08x = 21,458,626.93
  5. Step 5: Solve for x
    x = 21,458,626.93/3,992.08
  6. Step 6: Final answer
    x = 5,375.30

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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.