Home / 3,855.35-5,783.02-2,212.94

Finding the Fourth Proportional to 3,855.35, 5,783.02 and 2,212.94

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Solution

The fourth proportional to 3,855.35, 5,783.02 and 2,212.94 is: 3,319.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,855.35 : 5,783.02 = 2,212.94 : x
  2. Step 2: Convert to fraction form
    3,855.35/5,783.02 = 2,212.94/x
  3. Step 3: Cross multiply
    3,855.35x = 5,783.02 × 2,212.94
  4. Step 4: Simplify right side
    3,855.35x = 12,797,441.83
  5. Step 5: Solve for x
    x = 12,797,441.83/3,855.35
  6. Step 6: Final answer
    x = 3,319.40

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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.