Home / 3,222.08-4,469.20-3,136.70

Finding the Fourth Proportional to 3,222.08, 4,469.20 and 3,136.70

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Solution

The fourth proportional to 3,222.08, 4,469.20 and 3,136.70 is: 4,350.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,222.08 : 4,469.20 = 3,136.70 : x
  2. Step 2: Convert to fraction form
    3,222.08/4,469.20 = 3,136.70/x
  3. Step 3: Cross multiply
    3,222.08x = 4,469.20 × 3,136.70
  4. Step 4: Simplify right side
    3,222.08x = 14,018,539.64
  5. Step 5: Solve for x
    x = 14,018,539.64/3,222.08
  6. Step 6: Final answer
    x = 4,350.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.