Home / 3,375.37-5,072.63-1,989.36

Finding the Fourth Proportional to 3,375.37, 5,072.63 and 1,989.36

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Solution

The fourth proportional to 3,375.37, 5,072.63 and 1,989.36 is: 2,989.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,375.37 : 5,072.63 = 1,989.36 : x
  2. Step 2: Convert to fraction form
    3,375.37/5,072.63 = 1,989.36/x
  3. Step 3: Cross multiply
    3,375.37x = 5,072.63 × 1,989.36
  4. Step 4: Simplify right side
    3,375.37x = 10,091,277.27
  5. Step 5: Solve for x
    x = 10,091,277.27/3,375.37
  6. Step 6: Final answer
    x = 2,989.68

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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.