Home / 3,874.10-5,346.24-2,105.69

Finding the Fourth Proportional to 3,874.10, 5,346.24 and 2,105.69

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Solution

The fourth proportional to 3,874.10, 5,346.24 and 2,105.69 is: 2,905.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.10 : 5,346.24 = 2,105.69 : x
  2. Step 2: Convert to fraction form
    3,874.10/5,346.24 = 2,105.69/x
  3. Step 3: Cross multiply
    3,874.10x = 5,346.24 × 2,105.69
  4. Step 4: Simplify right side
    3,874.10x = 11,257,497.37
  5. Step 5: Solve for x
    x = 11,257,497.37/3,874.10
  6. Step 6: Final answer
    x = 2,905.84

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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.