Home / 1,986.44-2,741.04-1,102.12

Finding the Fourth Proportional to 1,986.44, 2,741.04 and 1,102.12

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Solution

The fourth proportional to 1,986.44, 2,741.04 and 1,102.12 is: 1,520.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986.44 : 2,741.04 = 1,102.12 : x
  2. Step 2: Convert to fraction form
    1,986.44/2,741.04 = 1,102.12/x
  3. Step 3: Cross multiply
    1,986.44x = 2,741.04 × 1,102.12
  4. Step 4: Simplify right side
    1,986.44x = 3,020,955.00
  5. Step 5: Solve for x
    x = 3,020,955.00/1,986.44
  6. Step 6: Final answer
    x = 1,520.79

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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.