Home / 2,218.18-3,319.03-1,392.59

Finding the Fourth Proportional to 2,218.18, 3,319.03 and 1,392.59

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Solution

The fourth proportional to 2,218.18, 3,319.03 and 1,392.59 is: 2,083.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,218.18 : 3,319.03 = 1,392.59 : x
  2. Step 2: Convert to fraction form
    2,218.18/3,319.03 = 1,392.59/x
  3. Step 3: Cross multiply
    2,218.18x = 3,319.03 × 1,392.59
  4. Step 4: Simplify right side
    2,218.18x = 4,622,045.58
  5. Step 5: Solve for x
    x = 4,622,045.58/2,218.18
  6. Step 6: Final answer
    x = 2,083.71

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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.