Home / 2,762.96-3,811.62-1,643.27

Finding the Fourth Proportional to 2,762.96, 3,811.62 and 1,643.27

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Solution

The fourth proportional to 2,762.96, 3,811.62 and 1,643.27 is: 2,266.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,762.96 : 3,811.62 = 1,643.27 : x
  2. Step 2: Convert to fraction form
    2,762.96/3,811.62 = 1,643.27/x
  3. Step 3: Cross multiply
    2,762.96x = 3,811.62 × 1,643.27
  4. Step 4: Simplify right side
    2,762.96x = 6,263,520.80
  5. Step 5: Solve for x
    x = 6,263,520.80/2,762.96
  6. Step 6: Final answer
    x = 2,266.96

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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.