Home / 3,975.42-5,485.56-2,296.80

Finding the Fourth Proportional to 3,975.42, 5,485.56 and 2,296.80

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Solution

The fourth proportional to 3,975.42, 5,485.56 and 2,296.80 is: 3,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,975.42 : 5,485.56 = 2,296.80 : x
  2. Step 2: Convert to fraction form
    3,975.42/5,485.56 = 2,296.80/x
  3. Step 3: Cross multiply
    3,975.42x = 5,485.56 × 2,296.80
  4. Step 4: Simplify right side
    3,975.42x = 12,599,234.21
  5. Step 5: Solve for x
    x = 12,599,234.21/3,975.42
  6. Step 6: Final answer
    x = 3,169.28

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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.