Home / 3,895.00-5,375.09-2,126.61

Finding the Fourth Proportional to 3,895.00, 5,375.09 and 2,126.61

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Solution

The fourth proportional to 3,895.00, 5,375.09 and 2,126.61 is: 2,934.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,895.00 : 5,375.09 = 2,126.61 : x
  2. Step 2: Convert to fraction form
    3,895.00/5,375.09 = 2,126.61/x
  3. Step 3: Cross multiply
    3,895.00x = 5,375.09 × 2,126.61
  4. Step 4: Simplify right side
    3,895.00x = 11,430,725.46
  5. Step 5: Solve for x
    x = 11,430,725.46/3,895.00
  6. Step 6: Final answer
    x = 2,934.72

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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.