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Finding the Fourth Proportional to 1,928.93, 2,893.07 and 696.92

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Solution

The fourth proportional to 1,928.93, 2,893.07 and 696.92 is: 1,045.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,928.93 : 2,893.07 = 696.92 : x
  2. Step 2: Convert to fraction form
    1,928.93/2,893.07 = 696.92/x
  3. Step 3: Cross multiply
    1,928.93x = 2,893.07 × 696.92
  4. Step 4: Simplify right side
    1,928.93x = 2,016,220.39
  5. Step 5: Solve for x
    x = 2,016,220.39/1,928.93
  6. Step 6: Final answer
    x = 1,045.26

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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.