Home / 3,183.16-4,777.98-2,139.88

Finding the Fourth Proportional to 3,183.16, 4,777.98 and 2,139.88

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Solution

The fourth proportional to 3,183.16, 4,777.98 and 2,139.88 is: 3,212.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,183.16 : 4,777.98 = 2,139.88 : x
  2. Step 2: Convert to fraction form
    3,183.16/4,777.98 = 2,139.88/x
  3. Step 3: Cross multiply
    3,183.16x = 4,777.98 × 2,139.88
  4. Step 4: Simplify right side
    3,183.16x = 10,224,303.84
  5. Step 5: Solve for x
    x = 10,224,303.84/3,183.16
  6. Step 6: Final answer
    x = 3,212.00

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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.