Home / 3,914.36-5,401.88-2,146.16

Finding the Fourth Proportional to 3,914.36, 5,401.88 and 2,146.16

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Solution

The fourth proportional to 3,914.36, 5,401.88 and 2,146.16 is: 2,961.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,914.36 : 5,401.88 = 2,146.16 : x
  2. Step 2: Convert to fraction form
    3,914.36/5,401.88 = 2,146.16/x
  3. Step 3: Cross multiply
    3,914.36x = 5,401.88 × 2,146.16
  4. Step 4: Simplify right side
    3,914.36x = 11,593,298.78
  5. Step 5: Solve for x
    x = 11,593,298.78/3,914.36
  6. Step 6: Final answer
    x = 2,961.74

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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.