Home / 2,821.95-4,233.60-1,177.58

Finding the Fourth Proportional to 2,821.95, 4,233.60 and 1,177.58

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Solution

The fourth proportional to 2,821.95, 4,233.60 and 1,177.58 is: 1,766.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,821.95 : 4,233.60 = 1,177.58 : x
  2. Step 2: Convert to fraction form
    2,821.95/4,233.60 = 1,177.58/x
  3. Step 3: Cross multiply
    2,821.95x = 4,233.60 × 1,177.58
  4. Step 4: Simplify right side
    2,821.95x = 4,985,413.27
  5. Step 5: Solve for x
    x = 4,985,413.27/2,821.95
  6. Step 6: Final answer
    x = 1,766.66

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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.