Home / 1,961.89-2,940.23-1,084.59

Finding the Fourth Proportional to 1,961.89, 2,940.23 and 1,084.59

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Solution

The fourth proportional to 1,961.89, 2,940.23 and 1,084.59 is: 1,625.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,961.89 : 2,940.23 = 1,084.59 : x
  2. Step 2: Convert to fraction form
    1,961.89/2,940.23 = 1,084.59/x
  3. Step 3: Cross multiply
    1,961.89x = 2,940.23 × 1,084.59
  4. Step 4: Simplify right side
    1,961.89x = 3,188,946.77
  5. Step 5: Solve for x
    x = 3,188,946.77/1,961.89
  6. Step 6: Final answer
    x = 1,625.45

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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.