Home / 2,861.43-3,950.67-2,197.09

Finding the Fourth Proportional to 2,861.43, 3,950.67 and 2,197.09

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Solution

The fourth proportional to 2,861.43, 3,950.67 and 2,197.09 is: 3,033.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,861.43 : 3,950.67 = 2,197.09 : x
  2. Step 2: Convert to fraction form
    2,861.43/3,950.67 = 2,197.09/x
  3. Step 3: Cross multiply
    2,861.43x = 3,950.67 × 2,197.09
  4. Step 4: Simplify right side
    2,861.43x = 8,679,977.55
  5. Step 5: Solve for x
    x = 8,679,977.55/2,861.43
  6. Step 6: Final answer
    x = 3,033.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.