Home / 3,910.26-5,394.15-2,650.89

Finding the Fourth Proportional to 3,910.26, 5,394.15 and 2,650.89

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Solution

The fourth proportional to 3,910.26, 5,394.15 and 2,650.89 is: 3,656.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.26 : 5,394.15 = 2,650.89 : x
  2. Step 2: Convert to fraction form
    3,910.26/5,394.15 = 2,650.89/x
  3. Step 3: Cross multiply
    3,910.26x = 5,394.15 × 2,650.89
  4. Step 4: Simplify right side
    3,910.26x = 14,299,297.63
  5. Step 5: Solve for x
    x = 14,299,297.63/3,910.26
  6. Step 6: Final answer
    x = 3,656.86

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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.