Home / 2,722.15-4,083.54-1,078.84

Finding the Fourth Proportional to 2,722.15, 4,083.54 and 1,078.84

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Solution

The fourth proportional to 2,722.15, 4,083.54 and 1,078.84 is: 1,618.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,722.15 : 4,083.54 = 1,078.84 : x
  2. Step 2: Convert to fraction form
    2,722.15/4,083.54 = 1,078.84/x
  3. Step 3: Cross multiply
    2,722.15x = 4,083.54 × 1,078.84
  4. Step 4: Simplify right side
    2,722.15x = 4,405,486.29
  5. Step 5: Solve for x
    x = 4,405,486.29/2,722.15
  6. Step 6: Final answer
    x = 1,618.38

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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.