Home / 3,861.99-5,329.87-2,183.69

Finding the Fourth Proportional to 3,861.99, 5,329.87 and 2,183.69

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Solution

The fourth proportional to 3,861.99, 5,329.87 and 2,183.69 is: 3,013.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,861.99 : 5,329.87 = 2,183.69 : x
  2. Step 2: Convert to fraction form
    3,861.99/5,329.87 = 2,183.69/x
  3. Step 3: Cross multiply
    3,861.99x = 5,329.87 × 2,183.69
  4. Step 4: Simplify right side
    3,861.99x = 11,638,783.82
  5. Step 5: Solve for x
    x = 11,638,783.82/3,861.99
  6. Step 6: Final answer
    x = 3,013.68

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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.