Home / 5,621.44-8,422.56-3,974.80

Finding the Fourth Proportional to 5,621.44, 8,422.56 and 3,974.80

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Solution

The fourth proportional to 5,621.44, 8,422.56 and 3,974.80 is: 5,955.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,621.44 : 8,422.56 = 3,974.80 : x
  2. Step 2: Convert to fraction form
    5,621.44/8,422.56 = 3,974.80/x
  3. Step 3: Cross multiply
    5,621.44x = 8,422.56 × 3,974.80
  4. Step 4: Simplify right side
    5,621.44x = 33,477,991.49
  5. Step 5: Solve for x
    x = 33,477,991.49/5,621.44
  6. Step 6: Final answer
    x = 5,955.41

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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.