Home / 1,790.24-2,469.92-1,126.85

Finding the Fourth Proportional to 1,790.24, 2,469.92 and 1,126.85

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Solution

The fourth proportional to 1,790.24, 2,469.92 and 1,126.85 is: 1,554.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,790.24 : 2,469.92 = 1,126.85 : x
  2. Step 2: Convert to fraction form
    1,790.24/2,469.92 = 1,126.85/x
  3. Step 3: Cross multiply
    1,790.24x = 2,469.92 × 1,126.85
  4. Step 4: Simplify right side
    1,790.24x = 2,783,229.89
  5. Step 5: Solve for x
    x = 2,783,229.89/1,790.24
  6. Step 6: Final answer
    x = 1,554.67

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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.