Home / 3,183.72-4,753.49-2,986.89

Finding the Fourth Proportional to 3,183.72, 4,753.49 and 2,986.89

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Solution

The fourth proportional to 3,183.72, 4,753.49 and 2,986.89 is: 4,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.72 : 4,753.49 = 2,986.89 : x
  2. Step 2: Convert to fraction form
    3,183.72/4,753.49 = 2,986.89/x
  3. Step 3: Cross multiply
    3,183.72x = 4,753.49 × 2,986.89
  4. Step 4: Simplify right side
    3,183.72x = 14,198,151.75
  5. Step 5: Solve for x
    x = 14,198,151.75/3,183.72
  6. Step 6: Final answer
    x = 4,459.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.