Home / 3,217-4,440-1,819.48

Finding the Fourth Proportional to 3,217, 4,440 and 1,819.48

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Solution

The fourth proportional to 3,217, 4,440 and 1,819.48 is: 2,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,217 : 4,440 = 1,819.48 : x
  2. Step 2: Convert to fraction form
    3,217/4,440 = 1,819.48/x
  3. Step 3: Cross multiply
    3,217x = 4,440 × 1,819.48
  4. Step 4: Simplify right side
    3,217x = 8,078,491.20
  5. Step 5: Solve for x
    x = 8,078,491.20/3,217
  6. Step 6: Final answer
    x = 2,511.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.