Home / 3,874.16-5,346.36-2,105.80

Finding the Fourth Proportional to 3,874.16, 5,346.36 and 2,105.80

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Solution

The fourth proportional to 3,874.16, 5,346.36 and 2,105.80 is: 2,906.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.16 : 5,346.36 = 2,105.80 : x
  2. Step 2: Convert to fraction form
    3,874.16/5,346.36 = 2,105.80/x
  3. Step 3: Cross multiply
    3,874.16x = 5,346.36 × 2,105.80
  4. Step 4: Simplify right side
    3,874.16x = 11,258,364.89
  5. Step 5: Solve for x
    x = 11,258,364.89/3,874.16
  6. Step 6: Final answer
    x = 2,906.01

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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.