Home / 6,440.12-8,885.99-3,786.56

Finding the Fourth Proportional to 6,440.12, 8,885.99 and 3,786.56

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Solution

The fourth proportional to 6,440.12, 8,885.99 and 3,786.56 is: 5,224.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,440.12 : 8,885.99 = 3,786.56 : x
  2. Step 2: Convert to fraction form
    6,440.12/8,885.99 = 3,786.56/x
  3. Step 3: Cross multiply
    6,440.12x = 8,885.99 × 3,786.56
  4. Step 4: Simplify right side
    6,440.12x = 33,647,299.33
  5. Step 5: Solve for x
    x = 33,647,299.33/6,440.12
  6. Step 6: Final answer
    x = 5,224.64

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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.