Home / 3,211.36-4,816.74-1,131.26

Finding the Fourth Proportional to 3,211.36, 4,816.74 and 1,131.26

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Solution

The fourth proportional to 3,211.36, 4,816.74 and 1,131.26 is: 1,696.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,211.36 : 4,816.74 = 1,131.26 : x
  2. Step 2: Convert to fraction form
    3,211.36/4,816.74 = 1,131.26/x
  3. Step 3: Cross multiply
    3,211.36x = 4,816.74 × 1,131.26
  4. Step 4: Simplify right side
    3,211.36x = 5,448,965.45
  5. Step 5: Solve for x
    x = 5,448,965.45/3,211.36
  6. Step 6: Final answer
    x = 1,696.78

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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.