Home / 3,873.97-5,346.09-2,105.59

Finding the Fourth Proportional to 3,873.97, 5,346.09 and 2,105.59

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Solution

The fourth proportional to 3,873.97, 5,346.09 and 2,105.59 is: 2,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.97 : 5,346.09 = 2,105.59 : x
  2. Step 2: Convert to fraction form
    3,873.97/5,346.09 = 2,105.59/x
  3. Step 3: Cross multiply
    3,873.97x = 5,346.09 × 2,105.59
  4. Step 4: Simplify right side
    3,873.97x = 11,256,663.12
  5. Step 5: Solve for x
    x = 11,256,663.12/3,873.97
  6. Step 6: Final answer
    x = 2,905.72

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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.