Home / 3,914.75-5,402.36-2,146.43

Finding the Fourth Proportional to 3,914.75, 5,402.36 and 2,146.43

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Solution

The fourth proportional to 3,914.75, 5,402.36 and 2,146.43 is: 2,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.75 : 5,402.36 = 2,146.43 : x
  2. Step 2: Convert to fraction form
    3,914.75/5,402.36 = 2,146.43/x
  3. Step 3: Cross multiply
    3,914.75x = 5,402.36 × 2,146.43
  4. Step 4: Simplify right side
    3,914.75x = 11,595,787.57
  5. Step 5: Solve for x
    x = 11,595,787.57/3,914.75
  6. Step 6: Final answer
    x = 2,962.08

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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.