Home / 2,919.88-4,029.60-1,801.54

Finding the Fourth Proportional to 2,919.88, 4,029.60 and 1,801.54

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Solution

The fourth proportional to 2,919.88, 4,029.60 and 1,801.54 is: 2,486.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,919.88 : 4,029.60 = 1,801.54 : x
  2. Step 2: Convert to fraction form
    2,919.88/4,029.60 = 1,801.54/x
  3. Step 3: Cross multiply
    2,919.88x = 4,029.60 × 1,801.54
  4. Step 4: Simplify right side
    2,919.88x = 7,259,485.58
  5. Step 5: Solve for x
    x = 7,259,485.58/2,919.88
  6. Step 6: Final answer
    x = 2,486.23

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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.