Home / 2,943.08-4,078.19-2,905.96

Finding the Fourth Proportional to 2,943.08, 4,078.19 and 2,905.96

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Solution

The fourth proportional to 2,943.08, 4,078.19 and 2,905.96 is: 4,026.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.08 : 4,078.19 = 2,905.96 : x
  2. Step 2: Convert to fraction form
    2,943.08/4,078.19 = 2,905.96/x
  3. Step 3: Cross multiply
    2,943.08x = 4,078.19 × 2,905.96
  4. Step 4: Simplify right side
    2,943.08x = 11,851,057.01
  5. Step 5: Solve for x
    x = 11,851,057.01/2,943.08
  6. Step 6: Final answer
    x = 4,026.75

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.