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Finding the Fourth Proportional to 2,021.92, 3,032.78 and 705.97

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Solution

The fourth proportional to 2,021.92, 3,032.78 and 705.97 is: 1,058.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,021.92 : 3,032.78 = 705.97 : x
  2. Step 2: Convert to fraction form
    2,021.92/3,032.78 = 705.97/x
  3. Step 3: Cross multiply
    2,021.92x = 3,032.78 × 705.97
  4. Step 4: Simplify right side
    2,021.92x = 2,141,051.70
  5. Step 5: Solve for x
    x = 2,141,051.70/2,021.92
  6. Step 6: Final answer
    x = 1,058.92

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.