Home / 1,971.06-2,949.73-1,190.59

Finding the Fourth Proportional to 1,971.06, 2,949.73 and 1,190.59

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Solution

The fourth proportional to 1,971.06, 2,949.73 and 1,190.59 is: 1,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.06 : 2,949.73 = 1,190.59 : x
  2. Step 2: Convert to fraction form
    1,971.06/2,949.73 = 1,190.59/x
  3. Step 3: Cross multiply
    1,971.06x = 2,949.73 × 1,190.59
  4. Step 4: Simplify right side
    1,971.06x = 3,511,919.04
  5. Step 5: Solve for x
    x = 3,511,919.04/1,971.06
  6. Step 6: Final answer
    x = 1,781.74

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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.