Home / 3,481.21-4,804.06-1,909.30

Finding the Fourth Proportional to 3,481.21, 4,804.06 and 1,909.30

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Solution

The fourth proportional to 3,481.21, 4,804.06 and 1,909.30 is: 2,634.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,481.21 : 4,804.06 = 1,909.30 : x
  2. Step 2: Convert to fraction form
    3,481.21/4,804.06 = 1,909.30/x
  3. Step 3: Cross multiply
    3,481.21x = 4,804.06 × 1,909.30
  4. Step 4: Simplify right side
    3,481.21x = 9,172,391.76
  5. Step 5: Solve for x
    x = 9,172,391.76/3,481.21
  6. Step 6: Final answer
    x = 2,634.83

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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.