Home / 5,185.26-7,778.70-2,992.86

Finding the Fourth Proportional to 5,185.26, 7,778.70 and 2,992.86

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Solution

The fourth proportional to 5,185.26, 7,778.70 and 2,992.86 is: 4,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185.26 : 7,778.70 = 2,992.86 : x
  2. Step 2: Convert to fraction form
    5,185.26/7,778.70 = 2,992.86/x
  3. Step 3: Cross multiply
    5,185.26x = 7,778.70 × 2,992.86
  4. Step 4: Simplify right side
    5,185.26x = 23,280,560.08
  5. Step 5: Solve for x
    x = 23,280,560.08/5,185.26
  6. Step 6: Final answer
    x = 4,489.76

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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.