Home / 3,940.84-5,910.40-1,474.28

Finding the Fourth Proportional to 3,940.84, 5,910.40 and 1,474.28

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Solution

The fourth proportional to 3,940.84, 5,910.40 and 1,474.28 is: 2,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.84 : 5,910.40 = 1,474.28 : x
  2. Step 2: Convert to fraction form
    3,940.84/5,910.40 = 1,474.28/x
  3. Step 3: Cross multiply
    3,940.84x = 5,910.40 × 1,474.28
  4. Step 4: Simplify right side
    3,940.84x = 8,713,584.51
  5. Step 5: Solve for x
    x = 8,713,584.51/3,940.84
  6. Step 6: Final answer
    x = 2,211.10

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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.