Home / 4,185.47-5,778.24-2,861.12

Finding the Fourth Proportional to 4,185.47, 5,778.24 and 2,861.12

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Solution

The fourth proportional to 4,185.47, 5,778.24 and 2,861.12 is: 3,949.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.47 : 5,778.24 = 2,861.12 : x
  2. Step 2: Convert to fraction form
    4,185.47/5,778.24 = 2,861.12/x
  3. Step 3: Cross multiply
    4,185.47x = 5,778.24 × 2,861.12
  4. Step 4: Simplify right side
    4,185.47x = 16,532,241.75
  5. Step 5: Solve for x
    x = 16,532,241.75/4,185.47
  6. Step 6: Final answer
    x = 3,949.91

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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.