Home / 5,405.22-8,099.73-4,170.78

Finding the Fourth Proportional to 5,405.22, 8,099.73 and 4,170.78

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Solution

The fourth proportional to 5,405.22, 8,099.73 and 4,170.78 is: 6,249.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,405.22 : 8,099.73 = 4,170.78 : x
  2. Step 2: Convert to fraction form
    5,405.22/8,099.73 = 4,170.78/x
  3. Step 3: Cross multiply
    5,405.22x = 8,099.73 × 4,170.78
  4. Step 4: Simplify right side
    5,405.22x = 33,782,191.89
  5. Step 5: Solve for x
    x = 33,782,191.89/5,405.22
  6. Step 6: Final answer
    x = 6,249.92

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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.