Home / 3,408.78-5,103.35-1,998.93

Finding the Fourth Proportional to 3,408.78, 5,103.35 and 1,998.93

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Solution

The fourth proportional to 3,408.78, 5,103.35 and 1,998.93 is: 2,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,408.78 : 5,103.35 = 1,998.93 : x
  2. Step 2: Convert to fraction form
    3,408.78/5,103.35 = 1,998.93/x
  3. Step 3: Cross multiply
    3,408.78x = 5,103.35 × 1,998.93
  4. Step 4: Simplify right side
    3,408.78x = 10,201,238.59
  5. Step 5: Solve for x
    x = 10,201,238.59/3,408.78
  6. Step 6: Final answer
    x = 2,992.63

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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.