Home / 3,418.09-5,131.46-2,908.33

Finding the Fourth Proportional to 3,418.09, 5,131.46 and 2,908.33

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Solution

The fourth proportional to 3,418.09, 5,131.46 and 2,908.33 is: 4,366.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.09 : 5,131.46 = 2,908.33 : x
  2. Step 2: Convert to fraction form
    3,418.09/5,131.46 = 2,908.33/x
  3. Step 3: Cross multiply
    3,418.09x = 5,131.46 × 2,908.33
  4. Step 4: Simplify right side
    3,418.09x = 14,923,979.06
  5. Step 5: Solve for x
    x = 14,923,979.06/3,418.09
  6. Step 6: Final answer
    x = 4,366.17

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1.5x scale

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.