Home / 4,945.46-7,420.92-2,025.80

Finding the Fourth Proportional to 4,945.46, 7,420.92 and 2,025.80

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Solution

The fourth proportional to 4,945.46, 7,420.92 and 2,025.80 is: 3,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,945.46 : 7,420.92 = 2,025.80 : x
  2. Step 2: Convert to fraction form
    4,945.46/7,420.92 = 2,025.80/x
  3. Step 3: Cross multiply
    4,945.46x = 7,420.92 × 2,025.80
  4. Step 4: Simplify right side
    4,945.46x = 15,033,299.74
  5. Step 5: Solve for x
    x = 15,033,299.74/4,945.46
  6. Step 6: Final answer
    x = 3,039.82

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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.