Home / 3,861.09-5,785.97-2,814.98

Finding the Fourth Proportional to 3,861.09, 5,785.97 and 2,814.98

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Solution

The fourth proportional to 3,861.09, 5,785.97 and 2,814.98 is: 4,218.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.09 : 5,785.97 = 2,814.98 : x
  2. Step 2: Convert to fraction form
    3,861.09/5,785.97 = 2,814.98/x
  3. Step 3: Cross multiply
    3,861.09x = 5,785.97 × 2,814.98
  4. Step 4: Simplify right side
    3,861.09x = 16,287,346.83
  5. Step 5: Solve for x
    x = 16,287,346.83/3,861.09
  6. Step 6: Final answer
    x = 4,218.33

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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.