Home / 2,986.44-4,121.25-1,660.11

Finding the Fourth Proportional to 2,986.44, 4,121.25 and 1,660.11

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Solution

The fourth proportional to 2,986.44, 4,121.25 and 1,660.11 is: 2,290.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.44 : 4,121.25 = 1,660.11 : x
  2. Step 2: Convert to fraction form
    2,986.44/4,121.25 = 1,660.11/x
  3. Step 3: Cross multiply
    2,986.44x = 4,121.25 × 1,660.11
  4. Step 4: Simplify right side
    2,986.44x = 6,841,728.34
  5. Step 5: Solve for x
    x = 6,841,728.34/2,986.44
  6. Step 6: Final answer
    x = 2,290.93

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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.