Home / 3,861.16-5,327.58-2,289.76

Finding the Fourth Proportional to 3,861.16, 5,327.58 and 2,289.76

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Solution

The fourth proportional to 3,861.16, 5,327.58 and 2,289.76 is: 3,159.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.16 : 5,327.58 = 2,289.76 : x
  2. Step 2: Convert to fraction form
    3,861.16/5,327.58 = 2,289.76/x
  3. Step 3: Cross multiply
    3,861.16x = 5,327.58 × 2,289.76
  4. Step 4: Simplify right side
    3,861.16x = 12,198,879.58
  5. Step 5: Solve for x
    x = 12,198,879.58/3,861.16
  6. Step 6: Final answer
    x = 3,159.38

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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.