Home / 2,192.95-3,026.31-1,198.31

Finding the Fourth Proportional to 2,192.95, 3,026.31 and 1,198.31

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Solution

The fourth proportional to 2,192.95, 3,026.31 and 1,198.31 is: 1,653.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,192.95 : 3,026.31 = 1,198.31 : x
  2. Step 2: Convert to fraction form
    2,192.95/3,026.31 = 1,198.31/x
  3. Step 3: Cross multiply
    2,192.95x = 3,026.31 × 1,198.31
  4. Step 4: Simplify right side
    2,192.95x = 3,626,451.54
  5. Step 5: Solve for x
    x = 3,626,451.54/2,192.95
  6. Step 6: Final answer
    x = 1,653.69

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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.