Home / 5,450.20-8,184.90-4,220.60

Finding the Fourth Proportional to 5,450.20, 8,184.90 and 4,220.60

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Solution

The fourth proportional to 5,450.20, 8,184.90 and 4,220.60 is: 6,338.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,450.20 : 8,184.90 = 4,220.60 : x
  2. Step 2: Convert to fraction form
    5,450.20/8,184.90 = 4,220.60/x
  3. Step 3: Cross multiply
    5,450.20x = 8,184.90 × 4,220.60
  4. Step 4: Simplify right side
    5,450.20x = 34,545,188.94
  5. Step 5: Solve for x
    x = 34,545,188.94/5,450.20
  6. Step 6: Final answer
    x = 6,338.33

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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.