Home / 3,186.97-4,399.19-2,399.65

Finding the Fourth Proportional to 3,186.97, 4,399.19 and 2,399.65

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Solution

The fourth proportional to 3,186.97, 4,399.19 and 2,399.65 is: 3,312.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.97 : 4,399.19 = 2,399.65 : x
  2. Step 2: Convert to fraction form
    3,186.97/4,399.19 = 2,399.65/x
  3. Step 3: Cross multiply
    3,186.97x = 4,399.19 × 2,399.65
  4. Step 4: Simplify right side
    3,186.97x = 10,556,516.28
  5. Step 5: Solve for x
    x = 10,556,516.28/3,186.97
  6. Step 6: Final answer
    x = 3,312.40

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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.