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Finding the Fourth Proportional to 1,796.93, 2,695.85 and 1,428.13

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Solution

The fourth proportional to 1,796.93, 2,695.85 and 1,428.13 is: 2,142.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796.93 : 2,695.85 = 1,428.13 : x
  2. Step 2: Convert to fraction form
    1,796.93/2,695.85 = 1,428.13/x
  3. Step 3: Cross multiply
    1,796.93x = 2,695.85 × 1,428.13
  4. Step 4: Simplify right side
    1,796.93x = 3,850,025.85
  5. Step 5: Solve for x
    x = 3,850,025.85/1,796.93
  6. Step 6: Final answer
    x = 2,142.55

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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.