Home / 2,788.21-4,179.57-1,800.43

Finding the Fourth Proportional to 2,788.21, 4,179.57 and 1,800.43

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Solution

The fourth proportional to 2,788.21, 4,179.57 and 1,800.43 is: 2,698.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788.21 : 4,179.57 = 1,800.43 : x
  2. Step 2: Convert to fraction form
    2,788.21/4,179.57 = 1,800.43/x
  3. Step 3: Cross multiply
    2,788.21x = 4,179.57 × 1,800.43
  4. Step 4: Simplify right side
    2,788.21x = 7,525,023.22
  5. Step 5: Solve for x
    x = 7,525,023.22/2,788.21
  6. Step 6: Final answer
    x = 2,698.87

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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.