Home / 3,183.37-4,775.97-1,428.89

Finding the Fourth Proportional to 3,183.37, 4,775.97 and 1,428.89

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Solution

The fourth proportional to 3,183.37, 4,775.97 and 1,428.89 is: 2,143.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.37 : 4,775.97 = 1,428.89 : x
  2. Step 2: Convert to fraction form
    3,183.37/4,775.97 = 1,428.89/x
  3. Step 3: Cross multiply
    3,183.37x = 4,775.97 × 1,428.89
  4. Step 4: Simplify right side
    3,183.37x = 6,824,335.77
  5. Step 5: Solve for x
    x = 6,824,335.77/3,183.37
  6. Step 6: Final answer
    x = 2,143.75

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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.