Home / 3,186.69-4,400.72-2,480.46

Finding the Fourth Proportional to 3,186.69, 4,400.72 and 2,480.46

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Solution

The fourth proportional to 3,186.69, 4,400.72 and 2,480.46 is: 3,425.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.69 : 4,400.72 = 2,480.46 : x
  2. Step 2: Convert to fraction form
    3,186.69/4,400.72 = 2,480.46/x
  3. Step 3: Cross multiply
    3,186.69x = 4,400.72 × 2,480.46
  4. Step 4: Simplify right side
    3,186.69x = 10,915,809.93
  5. Step 5: Solve for x
    x = 10,915,809.93/3,186.69
  6. Step 6: Final answer
    x = 3,425.44

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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.