Home / 2,745.32-4,116.90-1,879.88

Finding the Fourth Proportional to 2,745.32, 4,116.90 and 1,879.88

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Solution

The fourth proportional to 2,745.32, 4,116.90 and 1,879.88 is: 2,819.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,745.32 : 4,116.90 = 1,879.88 : x
  2. Step 2: Convert to fraction form
    2,745.32/4,116.90 = 1,879.88/x
  3. Step 3: Cross multiply
    2,745.32x = 4,116.90 × 1,879.88
  4. Step 4: Simplify right side
    2,745.32x = 7,739,277.97
  5. Step 5: Solve for x
    x = 7,739,277.97/2,745.32
  6. Step 6: Final answer
    x = 2,819.08

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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.