Home / 4,185.72-6,279.74-3,403.79

Finding the Fourth Proportional to 4,185.72, 6,279.74 and 3,403.79

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Solution

The fourth proportional to 4,185.72, 6,279.74 and 3,403.79 is: 5,106.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.72 : 6,279.74 = 3,403.79 : x
  2. Step 2: Convert to fraction form
    4,185.72/6,279.74 = 3,403.79/x
  3. Step 3: Cross multiply
    4,185.72x = 6,279.74 × 3,403.79
  4. Step 4: Simplify right side
    4,185.72x = 21,374,940.42
  5. Step 5: Solve for x
    x = 21,374,940.42/4,185.72
  6. Step 6: Final answer
    x = 5,106.63

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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.