Home / 2,796.90-4,187.13-1,961.06

Finding the Fourth Proportional to 2,796.90, 4,187.13 and 1,961.06

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Solution

The fourth proportional to 2,796.90, 4,187.13 and 1,961.06 is: 2,935.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,796.90 : 4,187.13 = 1,961.06 : x
  2. Step 2: Convert to fraction form
    2,796.90/4,187.13 = 1,961.06/x
  3. Step 3: Cross multiply
    2,796.90x = 4,187.13 × 1,961.06
  4. Step 4: Simplify right side
    2,796.90x = 8,211,192.22
  5. Step 5: Solve for x
    x = 8,211,192.22/2,796.90
  6. Step 6: Final answer
    x = 2,935.82

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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.