Home / 3,486.22-4,817.89-2,855.75

Finding the Fourth Proportional to 3,486.22, 4,817.89 and 2,855.75

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Solution

The fourth proportional to 3,486.22, 4,817.89 and 2,855.75 is: 3,946.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,486.22 : 4,817.89 = 2,855.75 : x
  2. Step 2: Convert to fraction form
    3,486.22/4,817.89 = 2,855.75/x
  3. Step 3: Cross multiply
    3,486.22x = 4,817.89 × 2,855.75
  4. Step 4: Simplify right side
    3,486.22x = 13,758,668.85
  5. Step 5: Solve for x
    x = 13,758,668.85/3,486.22
  6. Step 6: Final answer
    x = 3,946.59

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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.