Home / 3,196.85-4,778.39-2,777.06

Finding the Fourth Proportional to 3,196.85, 4,778.39 and 2,777.06

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Solution

The fourth proportional to 3,196.85, 4,778.39 and 2,777.06 is: 4,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,196.85 : 4,778.39 = 2,777.06 : x
  2. Step 2: Convert to fraction form
    3,196.85/4,778.39 = 2,777.06/x
  3. Step 3: Cross multiply
    3,196.85x = 4,778.39 × 2,777.06
  4. Step 4: Simplify right side
    3,196.85x = 13,269,837.96
  5. Step 5: Solve for x
    x = 13,269,837.96/3,196.85
  6. Step 6: Final answer
    x = 4,150.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.