Home / 2,921.14-4,398.83-2,105.07

Finding the Fourth Proportional to 2,921.14, 4,398.83 and 2,105.07

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Solution

The fourth proportional to 2,921.14, 4,398.83 and 2,105.07 is: 3,169.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,921.14 : 4,398.83 = 2,105.07 : x
  2. Step 2: Convert to fraction form
    2,921.14/4,398.83 = 2,105.07/x
  3. Step 3: Cross multiply
    2,921.14x = 4,398.83 × 2,105.07
  4. Step 4: Simplify right side
    2,921.14x = 9,259,845.07
  5. Step 5: Solve for x
    x = 9,259,845.07/2,921.14
  6. Step 6: Final answer
    x = 3,169.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.