Home / 3,172.43-4,750.45-2,819.81

Finding the Fourth Proportional to 3,172.43, 4,750.45 and 2,819.81

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Solution

The fourth proportional to 3,172.43, 4,750.45 and 2,819.81 is: 4,222.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,172.43 : 4,750.45 = 2,819.81 : x
  2. Step 2: Convert to fraction form
    3,172.43/4,750.45 = 2,819.81/x
  3. Step 3: Cross multiply
    3,172.43x = 4,750.45 × 2,819.81
  4. Step 4: Simplify right side
    3,172.43x = 13,395,371.24
  5. Step 5: Solve for x
    x = 13,395,371.24/3,172.43
  6. Step 6: Final answer
    x = 4,222.43

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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.