Home / 2,986.06-4,120.92-1,659.79

Finding the Fourth Proportional to 2,986.06, 4,120.92 and 1,659.79

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Solution

The fourth proportional to 2,986.06, 4,120.92 and 1,659.79 is: 2,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.06 : 4,120.92 = 1,659.79 : x
  2. Step 2: Convert to fraction form
    2,986.06/4,120.92 = 1,659.79/x
  3. Step 3: Cross multiply
    2,986.06x = 4,120.92 × 1,659.79
  4. Step 4: Simplify right side
    2,986.06x = 6,839,861.81
  5. Step 5: Solve for x
    x = 6,839,861.81/2,986.06
  6. Step 6: Final answer
    x = 2,290.60

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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.