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Finding the Fourth Proportional to 2,840.96, 3,921.73 and 1,910.00

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Solution

The fourth proportional to 2,840.96, 3,921.73 and 1,910.00 is: 2,636.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,840.96 : 3,921.73 = 1,910.00 : x
  2. Step 2: Convert to fraction form
    2,840.96/3,921.73 = 1,910.00/x
  3. Step 3: Cross multiply
    2,840.96x = 3,921.73 × 1,910.00
  4. Step 4: Simplify right side
    2,840.96x = 7,490,479.92
  5. Step 5: Solve for x
    x = 7,490,479.92/2,840.96
  6. Step 6: Final answer
    x = 2,636.61

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.