Home / 5,450.80-8,176.20-3,992.80

Finding the Fourth Proportional to 5,450.80, 8,176.20 and 3,992.80

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Solution

The fourth proportional to 5,450.80, 8,176.20 and 3,992.80 is: 5,989.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.80 : 8,176.20 = 3,992.80 : x
  2. Step 2: Convert to fraction form
    5,450.80/8,176.20 = 3,992.80/x
  3. Step 3: Cross multiply
    5,450.80x = 8,176.20 × 3,992.80
  4. Step 4: Simplify right side
    5,450.80x = 32,645,931.36
  5. Step 5: Solve for x
    x = 32,645,931.36/5,450.80
  6. Step 6: Final answer
    x = 5,989.20

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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.