Home / 3,214.69-4,819.68-2,172.11

Finding the Fourth Proportional to 3,214.69, 4,819.68 and 2,172.11

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Solution

The fourth proportional to 3,214.69, 4,819.68 and 2,172.11 is: 3,256.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,214.69 : 4,819.68 = 2,172.11 : x
  2. Step 2: Convert to fraction form
    3,214.69/4,819.68 = 2,172.11/x
  3. Step 3: Cross multiply
    3,214.69x = 4,819.68 × 2,172.11
  4. Step 4: Simplify right side
    3,214.69x = 10,468,851.03
  5. Step 5: Solve for x
    x = 10,468,851.03/3,214.69
  6. Step 6: Final answer
    x = 3,256.57

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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.