Home / 2,179.21-3,269.01-1,252.97

Finding the Fourth Proportional to 2,179.21, 3,269.01 and 1,252.97

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Solution

The fourth proportional to 2,179.21, 3,269.01 and 1,252.97 is: 1,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.21 : 3,269.01 = 1,252.97 : x
  2. Step 2: Convert to fraction form
    2,179.21/3,269.01 = 1,252.97/x
  3. Step 3: Cross multiply
    2,179.21x = 3,269.01 × 1,252.97
  4. Step 4: Simplify right side
    2,179.21x = 4,095,984.33
  5. Step 5: Solve for x
    x = 4,095,984.33/2,179.21
  6. Step 6: Final answer
    x = 1,879.58

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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.