Home / 5,477.40-8,198.82-3,912.36

Finding the Fourth Proportional to 5,477.40, 8,198.82 and 3,912.36

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Solution

The fourth proportional to 5,477.40, 8,198.82 and 3,912.36 is: 5,856.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,477.40 : 8,198.82 = 3,912.36 : x
  2. Step 2: Convert to fraction form
    5,477.40/8,198.82 = 3,912.36/x
  3. Step 3: Cross multiply
    5,477.40x = 8,198.82 × 3,912.36
  4. Step 4: Simplify right side
    5,477.40x = 32,076,735.42
  5. Step 5: Solve for x
    x = 32,076,735.42/5,477.40
  6. Step 6: Final answer
    x = 5,856.20

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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.