Home / 3,481.42-4,804.46-1,989.58

Finding the Fourth Proportional to 3,481.42, 4,804.46 and 1,989.58

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Solution

The fourth proportional to 3,481.42, 4,804.46 and 1,989.58 is: 2,745.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.42 : 4,804.46 = 1,989.58 : x
  2. Step 2: Convert to fraction form
    3,481.42/4,804.46 = 1,989.58/x
  3. Step 3: Cross multiply
    3,481.42x = 4,804.46 × 1,989.58
  4. Step 4: Simplify right side
    3,481.42x = 9,558,857.53
  5. Step 5: Solve for x
    x = 9,558,857.53/3,481.42
  6. Step 6: Final answer
    x = 2,745.68

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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.