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Finding the Fourth Proportional to 1,844.66, 2,766.06 and 611.64

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Solution

The fourth proportional to 1,844.66, 2,766.06 and 611.64 is: 917.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,844.66 : 2,766.06 = 611.64 : x
  2. Step 2: Convert to fraction form
    1,844.66/2,766.06 = 611.64/x
  3. Step 3: Cross multiply
    1,844.66x = 2,766.06 × 611.64
  4. Step 4: Simplify right side
    1,844.66x = 1,691,832.94
  5. Step 5: Solve for x
    x = 1,691,832.94/1,844.66
  6. Step 6: Final answer
    x = 917.15

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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.