Home / 3,861.80-5,790.30-2,217.52

Finding the Fourth Proportional to 3,861.80, 5,790.30 and 2,217.52

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Solution

The fourth proportional to 3,861.80, 5,790.30 and 2,217.52 is: 3,324.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.80 : 5,790.30 = 2,217.52 : x
  2. Step 2: Convert to fraction form
    3,861.80/5,790.30 = 2,217.52/x
  3. Step 3: Cross multiply
    3,861.80x = 5,790.30 × 2,217.52
  4. Step 4: Simplify right side
    3,861.80x = 12,840,106.06
  5. Step 5: Solve for x
    x = 12,840,106.06/3,861.80
  6. Step 6: Final answer
    x = 3,324.90

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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.