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Finding the Fourth Proportional to 1,797.66, 2,696.67 and 823.62

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Solution

The fourth proportional to 1,797.66, 2,696.67 and 823.62 is: 1,235.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,797.66 : 2,696.67 = 823.62 : x
  2. Step 2: Convert to fraction form
    1,797.66/2,696.67 = 823.62/x
  3. Step 3: Cross multiply
    1,797.66x = 2,696.67 × 823.62
  4. Step 4: Simplify right side
    1,797.66x = 2,221,031.35
  5. Step 5: Solve for x
    x = 2,221,031.35/1,797.66
  6. Step 6: Final answer
    x = 1,235.51

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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.