Home / 3,940.65-5,441.27-2,684.34

Finding the Fourth Proportional to 3,940.65, 5,441.27 and 2,684.34

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Solution

The fourth proportional to 3,940.65, 5,441.27 and 2,684.34 is: 3,706.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,940.65 : 5,441.27 = 2,684.34 : x
  2. Step 2: Convert to fraction form
    3,940.65/5,441.27 = 2,684.34/x
  3. Step 3: Cross multiply
    3,940.65x = 5,441.27 × 2,684.34
  4. Step 4: Simplify right side
    3,940.65x = 14,606,205.29
  5. Step 5: Solve for x
    x = 14,606,205.29/3,940.65
  6. Step 6: Final answer
    x = 3,706.55

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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.