Home / 3,680.94-5,079.88-2,169.34

Finding the Fourth Proportional to 3,680.94, 5,079.88 and 2,169.34

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Solution

The fourth proportional to 3,680.94, 5,079.88 and 2,169.34 is: 2,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.94 : 5,079.88 = 2,169.34 : x
  2. Step 2: Convert to fraction form
    3,680.94/5,079.88 = 2,169.34/x
  3. Step 3: Cross multiply
    3,680.94x = 5,079.88 × 2,169.34
  4. Step 4: Simplify right side
    3,680.94x = 11,019,986.88
  5. Step 5: Solve for x
    x = 11,019,986.88/3,680.94
  6. Step 6: Final answer
    x = 2,993.80

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1.5x scale

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.