Home / 5,622.60-8,450.10-4,909.80

Finding the Fourth Proportional to 5,622.60, 8,450.10 and 4,909.80

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Solution

The fourth proportional to 5,622.60, 8,450.10 and 4,909.80 is: 7,378.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,622.60 : 8,450.10 = 4,909.80 : x
  2. Step 2: Convert to fraction form
    5,622.60/8,450.10 = 4,909.80/x
  3. Step 3: Cross multiply
    5,622.60x = 8,450.10 × 4,909.80
  4. Step 4: Simplify right side
    5,622.60x = 41,488,300.98
  5. Step 5: Solve for x
    x = 41,488,300.98/5,622.60
  6. Step 6: Final answer
    x = 7,378.85

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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.