Home / 2,481.75-3,708.90-1,992.51

Finding the Fourth Proportional to 2,481.75, 3,708.90 and 1,992.51

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Solution

The fourth proportional to 2,481.75, 3,708.90 and 1,992.51 is: 2,977.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,481.75 : 3,708.90 = 1,992.51 : x
  2. Step 2: Convert to fraction form
    2,481.75/3,708.90 = 1,992.51/x
  3. Step 3: Cross multiply
    2,481.75x = 3,708.90 × 1,992.51
  4. Step 4: Simplify right side
    2,481.75x = 7,390,020.34
  5. Step 5: Solve for x
    x = 7,390,020.34/2,481.75
  6. Step 6: Final answer
    x = 2,977.75

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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.