Home / 2,850.86-4,270.39-2,643.26

Finding the Fourth Proportional to 2,850.86, 4,270.39 and 2,643.26

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Solution

The fourth proportional to 2,850.86, 4,270.39 and 2,643.26 is: 3,959.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,850.86 : 4,270.39 = 2,643.26 : x
  2. Step 2: Convert to fraction form
    2,850.86/4,270.39 = 2,643.26/x
  3. Step 3: Cross multiply
    2,850.86x = 4,270.39 × 2,643.26
  4. Step 4: Simplify right side
    2,850.86x = 11,287,723.11
  5. Step 5: Solve for x
    x = 11,287,723.11/2,850.86
  6. Step 6: Final answer
    x = 3,959.41

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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.