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Finding the Fourth Proportional to 1,796.60, 2,696.25 and 823.38

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Solution

The fourth proportional to 1,796.60, 2,696.25 and 823.38 is: 1,235.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,796.60 : 2,696.25 = 823.38 : x
  2. Step 2: Convert to fraction form
    1,796.60/2,696.25 = 823.38/x
  3. Step 3: Cross multiply
    1,796.60x = 2,696.25 × 823.38
  4. Step 4: Simplify right side
    1,796.60x = 2,220,038.33
  5. Step 5: Solve for x
    x = 2,220,038.33/1,796.60
  6. Step 6: Final answer
    x = 1,235.69

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1.5x scale

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.