Home / 4,910.73-7,360.25-3,421.90

Finding the Fourth Proportional to 4,910.73, 7,360.25 and 3,421.90

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Solution

The fourth proportional to 4,910.73, 7,360.25 and 3,421.90 is: 5,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,910.73 : 7,360.25 = 3,421.90 : x
  2. Step 2: Convert to fraction form
    4,910.73/7,360.25 = 3,421.90/x
  3. Step 3: Cross multiply
    4,910.73x = 7,360.25 × 3,421.90
  4. Step 4: Simplify right side
    4,910.73x = 25,185,999.79
  5. Step 5: Solve for x
    x = 25,185,999.79/4,910.73
  6. Step 6: Final answer
    x = 5,128.76

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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.