Home / 3,231.15-4,855.97-1,915.64

Finding the Fourth Proportional to 3,231.15, 4,855.97 and 1,915.64

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Solution

The fourth proportional to 3,231.15, 4,855.97 and 1,915.64 is: 2,878.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,231.15 : 4,855.97 = 1,915.64 : x
  2. Step 2: Convert to fraction form
    3,231.15/4,855.97 = 1,915.64/x
  3. Step 3: Cross multiply
    3,231.15x = 4,855.97 × 1,915.64
  4. Step 4: Simplify right side
    3,231.15x = 9,302,290.37
  5. Step 5: Solve for x
    x = 9,302,290.37/3,231.15
  6. Step 6: Final answer
    x = 2,878.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.