Home / 3,902.94-5,385.87-2,134.44

Finding the Fourth Proportional to 3,902.94, 5,385.87 and 2,134.44

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Solution

The fourth proportional to 3,902.94, 5,385.87 and 2,134.44 is: 2,945.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,902.94 : 5,385.87 = 2,134.44 : x
  2. Step 2: Convert to fraction form
    3,902.94/5,385.87 = 2,134.44/x
  3. Step 3: Cross multiply
    3,902.94x = 5,385.87 × 2,134.44
  4. Step 4: Simplify right side
    3,902.94x = 11,495,816.36
  5. Step 5: Solve for x
    x = 11,495,816.36/3,902.94
  6. Step 6: Final answer
    x = 2,945.42

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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.