Home / 3,408.45-5,101.61-2,921.91

Finding the Fourth Proportional to 3,408.45, 5,101.61 and 2,921.91

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Solution

The fourth proportional to 3,408.45, 5,101.61 and 2,921.91 is: 4,373.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.45 : 5,101.61 = 2,921.91 : x
  2. Step 2: Convert to fraction form
    3,408.45/5,101.61 = 2,921.91/x
  3. Step 3: Cross multiply
    3,408.45x = 5,101.61 × 2,921.91
  4. Step 4: Simplify right side
    3,408.45x = 14,906,430.67
  5. Step 5: Solve for x
    x = 14,906,430.67/3,408.45
  6. Step 6: Final answer
    x = 4,373.38

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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.