Home / 2,986.08-4,121.13-1,659.92

Finding the Fourth Proportional to 2,986.08, 4,121.13 and 1,659.92

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Solution

The fourth proportional to 2,986.08, 4,121.13 and 1,659.92 is: 2,290.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,986.08 : 4,121.13 = 1,659.92 : x
  2. Step 2: Convert to fraction form
    2,986.08/4,121.13 = 1,659.92/x
  3. Step 3: Cross multiply
    2,986.08x = 4,121.13 × 1,659.92
  4. Step 4: Simplify right side
    2,986.08x = 6,840,725.50
  5. Step 5: Solve for x
    x = 6,840,725.50/2,986.08
  6. Step 6: Final answer
    x = 2,290.87

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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.