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Finding the Fourth Proportional to 2,992.92, 4,485.44 and 1,326.47

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Solution

The fourth proportional to 2,992.92, 4,485.44 and 1,326.47 is: 1,987.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.92 : 4,485.44 = 1,326.47 : x
  2. Step 2: Convert to fraction form
    2,992.92/4,485.44 = 1,326.47/x
  3. Step 3: Cross multiply
    2,992.92x = 4,485.44 × 1,326.47
  4. Step 4: Simplify right side
    2,992.92x = 5,949,801.60
  5. Step 5: Solve for x
    x = 5,949,801.60/2,992.92
  6. Step 6: Final answer
    x = 1,987.96

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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.