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Finding the Fourth Proportional to 1,999.33, 2,998.63 and 1,176.64

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Solution

The fourth proportional to 1,999.33, 2,998.63 and 1,176.64 is: 1,764.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,999.33 : 2,998.63 = 1,176.64 : x
  2. Step 2: Convert to fraction form
    1,999.33/2,998.63 = 1,176.64/x
  3. Step 3: Cross multiply
    1,999.33x = 2,998.63 × 1,176.64
  4. Step 4: Simplify right side
    1,999.33x = 3,528,297.57
  5. Step 5: Solve for x
    x = 3,528,297.57/1,999.33
  6. Step 6: Final answer
    x = 1,764.74

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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.