Home / 2,968.15-4,093.77-1,918.39

Finding the Fourth Proportional to 2,968.15, 4,093.77 and 1,918.39

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Solution

The fourth proportional to 2,968.15, 4,093.77 and 1,918.39 is: 2,645.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,968.15 : 4,093.77 = 1,918.39 : x
  2. Step 2: Convert to fraction form
    2,968.15/4,093.77 = 1,918.39/x
  3. Step 3: Cross multiply
    2,968.15x = 4,093.77 × 1,918.39
  4. Step 4: Simplify right side
    2,968.15x = 7,853,447.43
  5. Step 5: Solve for x
    x = 7,853,447.43/2,968.15
  6. Step 6: Final answer
    x = 2,645.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.