Home / 2,679.51-4,020.23-1,198.61

Finding the Fourth Proportional to 2,679.51, 4,020.23 and 1,198.61

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Solution

The fourth proportional to 2,679.51, 4,020.23 and 1,198.61 is: 1,798.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,679.51 : 4,020.23 = 1,198.61 : x
  2. Step 2: Convert to fraction form
    2,679.51/4,020.23 = 1,198.61/x
  3. Step 3: Cross multiply
    2,679.51x = 4,020.23 × 1,198.61
  4. Step 4: Simplify right side
    2,679.51x = 4,818,708.47
  5. Step 5: Solve for x
    x = 4,818,708.47/2,679.51
  6. Step 6: Final answer
    x = 1,798.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.