Home / 2,802.09-4,200.41-2,021.61

Finding the Fourth Proportional to 2,802.09, 4,200.41 and 2,021.61

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Solution

The fourth proportional to 2,802.09, 4,200.41 and 2,021.61 is: 3,030.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.09 : 4,200.41 = 2,021.61 : x
  2. Step 2: Convert to fraction form
    2,802.09/4,200.41 = 2,021.61/x
  3. Step 3: Cross multiply
    2,802.09x = 4,200.41 × 2,021.61
  4. Step 4: Simplify right side
    2,802.09x = 8,491,576.67
  5. Step 5: Solve for x
    x = 8,491,576.67/2,802.09
  6. Step 6: Final answer
    x = 3,030.44

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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.