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Finding the Fourth Proportional to 2,402.76, 3,603.38 and 942.60

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Solution

The fourth proportional to 2,402.76, 3,603.38 and 942.60 is: 1,413.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,402.76 : 3,603.38 = 942.60 : x
  2. Step 2: Convert to fraction form
    2,402.76/3,603.38 = 942.60/x
  3. Step 3: Cross multiply
    2,402.76x = 3,603.38 × 942.60
  4. Step 4: Simplify right side
    2,402.76x = 3,396,545.99
  5. Step 5: Solve for x
    x = 3,396,545.99/2,402.76
  6. Step 6: Final answer
    x = 1,413.60

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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.