Home / 3,418.25-4,716.75-1,905.44

Finding the Fourth Proportional to 3,418.25, 4,716.75 and 1,905.44

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Solution

The fourth proportional to 3,418.25, 4,716.75 and 1,905.44 is: 2,629.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,418.25 : 4,716.75 = 1,905.44 : x
  2. Step 2: Convert to fraction form
    3,418.25/4,716.75 = 1,905.44/x
  3. Step 3: Cross multiply
    3,418.25x = 4,716.75 × 1,905.44
  4. Step 4: Simplify right side
    3,418.25x = 8,987,483.37
  5. Step 5: Solve for x
    x = 8,987,483.37/3,418.25
  6. Step 6: Final answer
    x = 2,629.27

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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.