Home / 2,940.89-4,413.02-1,186.70

Finding the Fourth Proportional to 2,940.89, 4,413.02 and 1,186.70

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Solution

The fourth proportional to 2,940.89, 4,413.02 and 1,186.70 is: 1,780.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,940.89 : 4,413.02 = 1,186.70 : x
  2. Step 2: Convert to fraction form
    2,940.89/4,413.02 = 1,186.70/x
  3. Step 3: Cross multiply
    2,940.89x = 4,413.02 × 1,186.70
  4. Step 4: Simplify right side
    2,940.89x = 5,236,902.84
  5. Step 5: Solve for x
    x = 5,236,902.84/2,940.89
  6. Step 6: Final answer
    x = 1,780.72

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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.