Home / 3,861.18-5,329.19-2,182.61

Finding the Fourth Proportional to 3,861.18, 5,329.19 and 2,182.61

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Solution

The fourth proportional to 3,861.18, 5,329.19 and 2,182.61 is: 3,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.18 : 5,329.19 = 2,182.61 : x
  2. Step 2: Convert to fraction form
    3,861.18/5,329.19 = 2,182.61/x
  3. Step 3: Cross multiply
    3,861.18x = 5,329.19 × 2,182.61
  4. Step 4: Simplify right side
    3,861.18x = 11,631,505.83
  5. Step 5: Solve for x
    x = 11,631,505.83/3,861.18
  6. Step 6: Final answer
    x = 3,012.42

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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.