Home / 2,771.80-3,829.94-2,216.84

Finding the Fourth Proportional to 2,771.80, 3,829.94 and 2,216.84

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Solution

The fourth proportional to 2,771.80, 3,829.94 and 2,216.84 is: 3,063.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,771.80 : 3,829.94 = 2,216.84 : x
  2. Step 2: Convert to fraction form
    2,771.80/3,829.94 = 2,216.84/x
  3. Step 3: Cross multiply
    2,771.80x = 3,829.94 × 2,216.84
  4. Step 4: Simplify right side
    2,771.80x = 8,490,364.19
  5. Step 5: Solve for x
    x = 8,490,364.19/2,771.80
  6. Step 6: Final answer
    x = 3,063.12

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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.