Home / 3,874.81-5,347.26-2,106.43

Finding the Fourth Proportional to 3,874.81, 5,347.26 and 2,106.43

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Solution

The fourth proportional to 3,874.81, 5,347.26 and 2,106.43 is: 2,906.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,874.81 : 5,347.26 = 2,106.43 : x
  2. Step 2: Convert to fraction form
    3,874.81/5,347.26 = 2,106.43/x
  3. Step 3: Cross multiply
    3,874.81x = 5,347.26 × 2,106.43
  4. Step 4: Simplify right side
    3,874.81x = 11,263,628.88
  5. Step 5: Solve for x
    x = 11,263,628.88/3,874.81
  6. Step 6: Final answer
    x = 2,906.89

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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.