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Finding the Fourth Proportional to 1,609.29, 2,413.94 and 683.87

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Solution

The fourth proportional to 1,609.29, 2,413.94 and 683.87 is: 1,025.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609.29 : 2,413.94 = 683.87 : x
  2. Step 2: Convert to fraction form
    1,609.29/2,413.94 = 683.87/x
  3. Step 3: Cross multiply
    1,609.29x = 2,413.94 × 683.87
  4. Step 4: Simplify right side
    1,609.29x = 1,650,805.66
  5. Step 5: Solve for x
    x = 1,650,805.66/1,609.29
  6. Step 6: Final answer
    x = 1,025.80

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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.