Home / 3,629.96-5,010.38-2,138.74

Finding the Fourth Proportional to 3,629.96, 5,010.38 and 2,138.74

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Solution

The fourth proportional to 3,629.96, 5,010.38 and 2,138.74 is: 2,952.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,629.96 : 5,010.38 = 2,138.74 : x
  2. Step 2: Convert to fraction form
    3,629.96/5,010.38 = 2,138.74/x
  3. Step 3: Cross multiply
    3,629.96x = 5,010.38 × 2,138.74
  4. Step 4: Simplify right side
    3,629.96x = 10,715,892.94
  5. Step 5: Solve for x
    x = 10,715,892.94/3,629.96
  6. Step 6: Final answer
    x = 2,952.07

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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.