Home / 2,766.21-3,815.26-1,926.91

Finding the Fourth Proportional to 2,766.21, 3,815.26 and 1,926.91

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Solution

The fourth proportional to 2,766.21, 3,815.26 and 1,926.91 is: 2,657.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,766.21 : 3,815.26 = 1,926.91 : x
  2. Step 2: Convert to fraction form
    2,766.21/3,815.26 = 1,926.91/x
  3. Step 3: Cross multiply
    2,766.21x = 3,815.26 × 1,926.91
  4. Step 4: Simplify right side
    2,766.21x = 7,351,662.65
  5. Step 5: Solve for x
    x = 7,351,662.65/2,766.21
  6. Step 6: Final answer
    x = 2,657.67

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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.