Home / 2,076.90-3,116.19-843.99

Finding the Fourth Proportional to 2,076.90, 3,116.19 and 843.99

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Solution

The fourth proportional to 2,076.90, 3,116.19 and 843.99 is: 1,266.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,076.90 : 3,116.19 = 843.99 : x
  2. Step 2: Convert to fraction form
    2,076.90/3,116.19 = 843.99/x
  3. Step 3: Cross multiply
    2,076.90x = 3,116.19 × 843.99
  4. Step 4: Simplify right side
    2,076.90x = 2,630,033.20
  5. Step 5: Solve for x
    x = 2,630,033.20/2,076.90
  6. Step 6: Final answer
    x = 1,266.33

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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.