Home / 3,876.07-5,348.97-2,107.67

Finding the Fourth Proportional to 3,876.07, 5,348.97 and 2,107.67

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Solution

The fourth proportional to 3,876.07, 5,348.97 and 2,107.67 is: 2,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,876.07 : 5,348.97 = 2,107.67 : x
  2. Step 2: Convert to fraction form
    3,876.07/5,348.97 = 2,107.67/x
  3. Step 3: Cross multiply
    3,876.07x = 5,348.97 × 2,107.67
  4. Step 4: Simplify right side
    3,876.07x = 11,273,863.60
  5. Step 5: Solve for x
    x = 11,273,863.60/3,876.07
  6. Step 6: Final answer
    x = 2,908.58

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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.