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Finding the Fourth Proportional to 1,789.14, 2,683.31 and 634.89

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Solution

The fourth proportional to 1,789.14, 2,683.31 and 634.89 is: 952.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,789.14 : 2,683.31 = 634.89 : x
  2. Step 2: Convert to fraction form
    1,789.14/2,683.31 = 634.89/x
  3. Step 3: Cross multiply
    1,789.14x = 2,683.31 × 634.89
  4. Step 4: Simplify right side
    1,789.14x = 1,703,603.51
  5. Step 5: Solve for x
    x = 1,703,603.51/1,789.14
  6. Step 6: Final answer
    x = 952.19

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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.