Home / 1,971.44-2,953.26-1,189.13

Finding the Fourth Proportional to 1,971.44, 2,953.26 and 1,189.13

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Solution

The fourth proportional to 1,971.44, 2,953.26 and 1,189.13 is: 1,781.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971.44 : 2,953.26 = 1,189.13 : x
  2. Step 2: Convert to fraction form
    1,971.44/2,953.26 = 1,189.13/x
  3. Step 3: Cross multiply
    1,971.44x = 2,953.26 × 1,189.13
  4. Step 4: Simplify right side
    1,971.44x = 3,511,795.30
  5. Step 5: Solve for x
    x = 3,511,795.30/1,971.44
  6. Step 6: Final answer
    x = 1,781.34

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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.