Home / 3,201.72-4,418.46-1,804.80

Finding the Fourth Proportional to 3,201.72, 4,418.46 and 1,804.80

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Solution

The fourth proportional to 3,201.72, 4,418.46 and 1,804.80 is: 2,490.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,201.72 : 4,418.46 = 1,804.80 : x
  2. Step 2: Convert to fraction form
    3,201.72/4,418.46 = 1,804.80/x
  3. Step 3: Cross multiply
    3,201.72x = 4,418.46 × 1,804.80
  4. Step 4: Simplify right side
    3,201.72x = 7,974,436.61
  5. Step 5: Solve for x
    x = 7,974,436.61/3,201.72
  6. Step 6: Final answer
    x = 2,490.67

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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.