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Finding the Fourth Proportional to 3,755.99, 5,183.31 and 2,162.79

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Solution

The fourth proportional to 3,755.99, 5,183.31 and 2,162.79 is: 2,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.99 : 5,183.31 = 2,162.79 : x
  2. Step 2: Convert to fraction form
    3,755.99/5,183.31 = 2,162.79/x
  3. Step 3: Cross multiply
    3,755.99x = 5,183.31 × 2,162.79
  4. Step 4: Simplify right side
    3,755.99x = 11,210,411.03
  5. Step 5: Solve for x
    x = 11,210,411.03/3,755.99
  6. Step 6: Final answer
    x = 2,984.68

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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.