Home / 1,986.58-2,741.61-1,147.44

Finding the Fourth Proportional to 1,986.58, 2,741.61 and 1,147.44

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Solution

The fourth proportional to 1,986.58, 2,741.61 and 1,147.44 is: 1,583.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.58 : 2,741.61 = 1,147.44 : x
  2. Step 2: Convert to fraction form
    1,986.58/2,741.61 = 1,147.44/x
  3. Step 3: Cross multiply
    1,986.58x = 2,741.61 × 1,147.44
  4. Step 4: Simplify right side
    1,986.58x = 3,145,832.98
  5. Step 5: Solve for x
    x = 3,145,832.98/1,986.58
  6. Step 6: Final answer
    x = 1,583.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.