Home / 3,910.49-5,396.27-2,141.75

Finding the Fourth Proportional to 3,910.49, 5,396.27 and 2,141.75

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Solution

The fourth proportional to 3,910.49, 5,396.27 and 2,141.75 is: 2,955.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,910.49 : 5,396.27 = 2,141.75 : x
  2. Step 2: Convert to fraction form
    3,910.49/5,396.27 = 2,141.75/x
  3. Step 3: Cross multiply
    3,910.49x = 5,396.27 × 2,141.75
  4. Step 4: Simplify right side
    3,910.49x = 11,557,461.27
  5. Step 5: Solve for x
    x = 11,557,461.27/3,910.49
  6. Step 6: Final answer
    x = 2,955.50

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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.