Home / 3,873.44-5,345.20-2,105.01

Finding the Fourth Proportional to 3,873.44, 5,345.20 and 2,105.01

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Solution

The fourth proportional to 3,873.44, 5,345.20 and 2,105.01 is: 2,904.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,873.44 : 5,345.20 = 2,105.01 : x
  2. Step 2: Convert to fraction form
    3,873.44/5,345.20 = 2,105.01/x
  3. Step 3: Cross multiply
    3,873.44x = 5,345.20 × 2,105.01
  4. Step 4: Simplify right side
    3,873.44x = 11,251,662.20
  5. Step 5: Solve for x
    x = 11,251,662.20/3,873.44
  6. Step 6: Final answer
    x = 2,904.82

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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.