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Finding the Fourth Proportional to 3,493.92, 5,239.04 and 2,261.90

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Solution

The fourth proportional to 3,493.92, 5,239.04 and 2,261.90 is: 3,391.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,493.92 : 5,239.04 = 2,261.90 : x
  2. Step 2: Convert to fraction form
    3,493.92/5,239.04 = 2,261.90/x
  3. Step 3: Cross multiply
    3,493.92x = 5,239.04 × 2,261.90
  4. Step 4: Simplify right side
    3,493.92x = 11,850,184.58
  5. Step 5: Solve for x
    x = 11,850,184.58/3,493.92
  6. Step 6: Final answer
    x = 3,391.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.