Home / 2,198.08-3,032.60-1,253.19

Finding the Fourth Proportional to 2,198.08, 3,032.60 and 1,253.19

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Solution

The fourth proportional to 2,198.08, 3,032.60 and 1,253.19 is: 1,728.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,198.08 : 3,032.60 = 1,253.19 : x
  2. Step 2: Convert to fraction form
    2,198.08/3,032.60 = 1,253.19/x
  3. Step 3: Cross multiply
    2,198.08x = 3,032.60 × 1,253.19
  4. Step 4: Simplify right side
    2,198.08x = 3,800,421.96
  5. Step 5: Solve for x
    x = 3,800,421.96/2,198.08
  6. Step 6: Final answer
    x = 1,728.97

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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.