Home / 3,917.03-5,405.11-2,238.84

Finding the Fourth Proportional to 3,917.03, 5,405.11 and 2,238.84

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Solution

The fourth proportional to 3,917.03, 5,405.11 and 2,238.84 is: 3,089.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,917.03 : 5,405.11 = 2,238.84 : x
  2. Step 2: Convert to fraction form
    3,917.03/5,405.11 = 2,238.84/x
  3. Step 3: Cross multiply
    3,917.03x = 5,405.11 × 2,238.84
  4. Step 4: Simplify right side
    3,917.03x = 12,101,170.88
  5. Step 5: Solve for x
    x = 12,101,170.88/3,917.03
  6. Step 6: Final answer
    x = 3,089.38

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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.