Home / 2,198.22-3,269.06-2,129.01

Finding the Fourth Proportional to 2,198.22, 3,269.06 and 2,129.01

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Solution

The fourth proportional to 2,198.22, 3,269.06 and 2,129.01 is: 3,166.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.22 : 3,269.06 = 2,129.01 : x
  2. Step 2: Convert to fraction form
    2,198.22/3,269.06 = 2,129.01/x
  3. Step 3: Cross multiply
    2,198.22x = 3,269.06 × 2,129.01
  4. Step 4: Simplify right side
    2,198.22x = 6,959,850.79
  5. Step 5: Solve for x
    x = 6,959,850.79/2,198.22
  6. Step 6: Final answer
    x = 3,166.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.