Home / 3,816.35-5,720.58-2,169.35

Finding the Fourth Proportional to 3,816.35, 5,720.58 and 2,169.35

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Solution

The fourth proportional to 3,816.35, 5,720.58 and 2,169.35 is: 3,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.35 : 5,720.58 = 2,169.35 : x
  2. Step 2: Convert to fraction form
    3,816.35/5,720.58 = 2,169.35/x
  3. Step 3: Cross multiply
    3,816.35x = 5,720.58 × 2,169.35
  4. Step 4: Simplify right side
    3,816.35x = 12,409,940.22
  5. Step 5: Solve for x
    x = 12,409,940.22/3,816.35
  6. Step 6: Final answer
    x = 3,251.78

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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.