Home / 3,078.88-4,249.51-1,959.59

Finding the Fourth Proportional to 3,078.88, 4,249.51 and 1,959.59

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Solution

The fourth proportional to 3,078.88, 4,249.51 and 1,959.59 is: 2,704.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.88 : 4,249.51 = 1,959.59 : x
  2. Step 2: Convert to fraction form
    3,078.88/4,249.51 = 1,959.59/x
  3. Step 3: Cross multiply
    3,078.88x = 4,249.51 × 1,959.59
  4. Step 4: Simplify right side
    3,078.88x = 8,327,303.03
  5. Step 5: Solve for x
    x = 8,327,303.03/3,078.88
  6. Step 6: Final answer
    x = 2,704.66

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1.5x scale

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.