Home / 1,998.07-3,008.75-1,481.69

Finding the Fourth Proportional to 1,998.07, 3,008.75 and 1,481.69

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Solution

The fourth proportional to 1,998.07, 3,008.75 and 1,481.69 is: 2,231.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.07 : 3,008.75 = 1,481.69 : x
  2. Step 2: Convert to fraction form
    1,998.07/3,008.75 = 1,481.69/x
  3. Step 3: Cross multiply
    1,998.07x = 3,008.75 × 1,481.69
  4. Step 4: Simplify right side
    1,998.07x = 4,458,034.90
  5. Step 5: Solve for x
    x = 4,458,034.90/1,998.07
  6. Step 6: Final answer
    x = 2,231.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.