Home / 2,776.90-3,824.34-2,768.25

Finding the Fourth Proportional to 2,776.90, 3,824.34 and 2,768.25

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Solution

The fourth proportional to 2,776.90, 3,824.34 and 2,768.25 is: 3,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,776.90 : 3,824.34 = 2,768.25 : x
  2. Step 2: Convert to fraction form
    2,776.90/3,824.34 = 2,768.25/x
  3. Step 3: Cross multiply
    2,776.90x = 3,824.34 × 2,768.25
  4. Step 4: Simplify right side
    2,776.90x = 10,586,729.21
  5. Step 5: Solve for x
    x = 10,586,729.21/2,776.90
  6. Step 6: Final answer
    x = 3,812.43

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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.