Home / 4,623.88-6,380.72-2,855.64

Finding the Fourth Proportional to 4,623.88, 6,380.72 and 2,855.64

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Solution

The fourth proportional to 4,623.88, 6,380.72 and 2,855.64 is: 3,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,623.88 : 6,380.72 = 2,855.64 : x
  2. Step 2: Convert to fraction form
    4,623.88/6,380.72 = 2,855.64/x
  3. Step 3: Cross multiply
    4,623.88x = 6,380.72 × 2,855.64
  4. Step 4: Simplify right side
    4,623.88x = 18,221,039.26
  5. Step 5: Solve for x
    x = 18,221,039.26/4,623.88
  6. Step 6: Final answer
    x = 3,940.64

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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.