Home / 3,709.21-5,546.95-2,772.80

Finding the Fourth Proportional to 3,709.21, 5,546.95 and 2,772.80

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Solution

The fourth proportional to 3,709.21, 5,546.95 and 2,772.80 is: 4,146.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,709.21 : 5,546.95 = 2,772.80 : x
  2. Step 2: Convert to fraction form
    3,709.21/5,546.95 = 2,772.80/x
  3. Step 3: Cross multiply
    3,709.21x = 5,546.95 × 2,772.80
  4. Step 4: Simplify right side
    3,709.21x = 15,380,582.96
  5. Step 5: Solve for x
    x = 15,380,582.96/3,709.21
  6. Step 6: Final answer
    x = 4,146.59

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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.