Home / 3,914.18-5,401.91-2,146.13

Finding the Fourth Proportional to 3,914.18, 5,401.91 and 2,146.13

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Solution

The fourth proportional to 3,914.18, 5,401.91 and 2,146.13 is: 2,961.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.18 : 5,401.91 = 2,146.13 : x
  2. Step 2: Convert to fraction form
    3,914.18/5,401.91 = 2,146.13/x
  3. Step 3: Cross multiply
    3,914.18x = 5,401.91 × 2,146.13
  4. Step 4: Simplify right side
    3,914.18x = 11,593,219.98
  5. Step 5: Solve for x
    x = 11,593,219.98/3,914.18
  6. Step 6: Final answer
    x = 2,961.85

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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.