Home / 3,078.88-4,618.38-1,104.64

Finding the Fourth Proportional to 3,078.88, 4,618.38 and 1,104.64

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Solution

The fourth proportional to 3,078.88, 4,618.38 and 1,104.64 is: 1,656.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,078.88 : 4,618.38 = 1,104.64 : x
  2. Step 2: Convert to fraction form
    3,078.88/4,618.38 = 1,104.64/x
  3. Step 3: Cross multiply
    3,078.88x = 4,618.38 × 1,104.64
  4. Step 4: Simplify right side
    3,078.88x = 5,101,635.74
  5. Step 5: Solve for x
    x = 5,101,635.74/3,078.88
  6. Step 6: Final answer
    x = 1,656.98

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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.