Home / 2,183.07-3,011.96-1,238.79

Finding the Fourth Proportional to 2,183.07, 3,011.96 and 1,238.79

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Solution

The fourth proportional to 2,183.07, 3,011.96 and 1,238.79 is: 1,709.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,183.07 : 3,011.96 = 1,238.79 : x
  2. Step 2: Convert to fraction form
    2,183.07/3,011.96 = 1,238.79/x
  3. Step 3: Cross multiply
    2,183.07x = 3,011.96 × 1,238.79
  4. Step 4: Simplify right side
    2,183.07x = 3,731,185.93
  5. Step 5: Solve for x
    x = 3,731,185.93/2,183.07
  6. Step 6: Final answer
    x = 1,709.15

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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.