Home / 3,821.90-5,723.58-1,942.84

Finding the Fourth Proportional to 3,821.90, 5,723.58 and 1,942.84

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Solution

The fourth proportional to 3,821.90, 5,723.58 and 1,942.84 is: 2,909.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,821.90 : 5,723.58 = 1,942.84 : x
  2. Step 2: Convert to fraction form
    3,821.90/5,723.58 = 1,942.84/x
  3. Step 3: Cross multiply
    3,821.90x = 5,723.58 × 1,942.84
  4. Step 4: Simplify right side
    3,821.90x = 11,120,007.32
  5. Step 5: Solve for x
    x = 11,120,007.32/3,821.90
  6. Step 6: Final answer
    x = 2,909.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.