Home / 2,851.56-4,272.98-2,069.64

Finding the Fourth Proportional to 2,851.56, 4,272.98 and 2,069.64

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Solution

The fourth proportional to 2,851.56, 4,272.98 and 2,069.64 is: 3,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,851.56 : 4,272.98 = 2,069.64 : x
  2. Step 2: Convert to fraction form
    2,851.56/4,272.98 = 2,069.64/x
  3. Step 3: Cross multiply
    2,851.56x = 4,272.98 × 2,069.64
  4. Step 4: Simplify right side
    2,851.56x = 8,843,519.98
  5. Step 5: Solve for x
    x = 8,843,519.98/2,851.56
  6. Step 6: Final answer
    x = 3,101.29

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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.