Home / 4,914.94-6,782.76-2,790.43

Finding the Fourth Proportional to 4,914.94, 6,782.76 and 2,790.43

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Solution

The fourth proportional to 4,914.94, 6,782.76 and 2,790.43 is: 3,850.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.94 : 6,782.76 = 2,790.43 : x
  2. Step 2: Convert to fraction form
    4,914.94/6,782.76 = 2,790.43/x
  3. Step 3: Cross multiply
    4,914.94x = 6,782.76 × 2,790.43
  4. Step 4: Simplify right side
    4,914.94x = 18,926,816.99
  5. Step 5: Solve for x
    x = 18,926,816.99/4,914.94
  6. Step 6: Final answer
    x = 3,850.87

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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.