Home / 2,796.90-4,198.55-1,643.30

Finding the Fourth Proportional to 2,796.90, 4,198.55 and 1,643.30

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Solution

The fourth proportional to 2,796.90, 4,198.55 and 1,643.30 is: 2,466.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.90 : 4,198.55 = 1,643.30 : x
  2. Step 2: Convert to fraction form
    2,796.90/4,198.55 = 1,643.30/x
  3. Step 3: Cross multiply
    2,796.90x = 4,198.55 × 1,643.30
  4. Step 4: Simplify right side
    2,796.90x = 6,899,477.22
  5. Step 5: Solve for x
    x = 6,899,477.22/2,796.90
  6. Step 6: Final answer
    x = 2,466.83

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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.