Home / 2,234.28-3,082.92-1,289.85

Finding the Fourth Proportional to 2,234.28, 3,082.92 and 1,289.85

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Solution

The fourth proportional to 2,234.28, 3,082.92 and 1,289.85 is: 1,779.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,234.28 : 3,082.92 = 1,289.85 : x
  2. Step 2: Convert to fraction form
    2,234.28/3,082.92 = 1,289.85/x
  3. Step 3: Cross multiply
    2,234.28x = 3,082.92 × 1,289.85
  4. Step 4: Simplify right side
    2,234.28x = 3,976,504.36
  5. Step 5: Solve for x
    x = 3,976,504.36/2,234.28
  6. Step 6: Final answer
    x = 1,779.77

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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.