Home / 3,836.21-5,296.46-2,775.78

Finding the Fourth Proportional to 3,836.21, 5,296.46 and 2,775.78

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Solution

The fourth proportional to 3,836.21, 5,296.46 and 2,775.78 is: 3,832.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,836.21 : 5,296.46 = 2,775.78 : x
  2. Step 2: Convert to fraction form
    3,836.21/5,296.46 = 2,775.78/x
  3. Step 3: Cross multiply
    3,836.21x = 5,296.46 × 2,775.78
  4. Step 4: Simplify right side
    3,836.21x = 14,701,793.86
  5. Step 5: Solve for x
    x = 14,701,793.86/3,836.21
  6. Step 6: Final answer
    x = 3,832.38

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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.