Home / 2,986.32-4,121.08-1,659.99

Finding the Fourth Proportional to 2,986.32, 4,121.08 and 1,659.99

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Solution

The fourth proportional to 2,986.32, 4,121.08 and 1,659.99 is: 2,290.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.32 : 4,121.08 = 1,659.99 : x
  2. Step 2: Convert to fraction form
    2,986.32/4,121.08 = 1,659.99/x
  3. Step 3: Cross multiply
    2,986.32x = 4,121.08 × 1,659.99
  4. Step 4: Simplify right side
    2,986.32x = 6,840,951.59
  5. Step 5: Solve for x
    x = 6,840,951.59/2,986.32
  6. Step 6: Final answer
    x = 2,290.76

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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.