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Finding the Fourth Proportional to 1,845.94, 2,766.48 and 872.32

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Solution

The fourth proportional to 1,845.94, 2,766.48 and 872.32 is: 1,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,845.94 : 2,766.48 = 872.32 : x
  2. Step 2: Convert to fraction form
    1,845.94/2,766.48 = 872.32/x
  3. Step 3: Cross multiply
    1,845.94x = 2,766.48 × 872.32
  4. Step 4: Simplify right side
    1,845.94x = 2,413,255.83
  5. Step 5: Solve for x
    x = 2,413,255.83/1,845.94
  6. Step 6: Final answer
    x = 1,307.33

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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.