Home / 2,450.63-3,379.56-1,890.21

Finding the Fourth Proportional to 2,450.63, 3,379.56 and 1,890.21

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Solution

The fourth proportional to 2,450.63, 3,379.56 and 1,890.21 is: 2,606.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,450.63 : 3,379.56 = 1,890.21 : x
  2. Step 2: Convert to fraction form
    2,450.63/3,379.56 = 1,890.21/x
  3. Step 3: Cross multiply
    2,450.63x = 3,379.56 × 1,890.21
  4. Step 4: Simplify right side
    2,450.63x = 6,388,078.11
  5. Step 5: Solve for x
    x = 6,388,078.11/2,450.63
  6. Step 6: Final answer
    x = 2,606.71

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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.