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Finding the Fourth Proportional to 4,914.46, 6,782.08 and 2,790.08

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Solution

The fourth proportional to 4,914.46, 6,782.08 and 2,790.08 is: 3,850.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,914.46 : 6,782.08 = 2,790.08 : x
  2. Step 2: Convert to fraction form
    4,914.46/6,782.08 = 2,790.08/x
  3. Step 3: Cross multiply
    4,914.46x = 6,782.08 × 2,790.08
  4. Step 4: Simplify right side
    4,914.46x = 18,922,535.55
  5. Step 5: Solve for x
    x = 18,922,535.55/4,914.46
  6. Step 6: Final answer
    x = 3,850.38

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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.