Home / 2,120.92-3,179.25-1,024.67

Finding the Fourth Proportional to 2,120.92, 3,179.25 and 1,024.67

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Solution

The fourth proportional to 2,120.92, 3,179.25 and 1,024.67 is: 1,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120.92 : 3,179.25 = 1,024.67 : x
  2. Step 2: Convert to fraction form
    2,120.92/3,179.25 = 1,024.67/x
  3. Step 3: Cross multiply
    2,120.92x = 3,179.25 × 1,024.67
  4. Step 4: Simplify right side
    2,120.92x = 3,257,690.05
  5. Step 5: Solve for x
    x = 3,257,690.05/2,120.92
  6. Step 6: Final answer
    x = 1,535.98

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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.