Home / 3,209.82-4,815.45-1,018.62

Finding the Fourth Proportional to 3,209.82, 4,815.45 and 1,018.62

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Solution

The fourth proportional to 3,209.82, 4,815.45 and 1,018.62 is: 1,528.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,209.82 : 4,815.45 = 1,018.62 : x
  2. Step 2: Convert to fraction form
    3,209.82/4,815.45 = 1,018.62/x
  3. Step 3: Cross multiply
    3,209.82x = 4,815.45 × 1,018.62
  4. Step 4: Simplify right side
    3,209.82x = 4,905,113.68
  5. Step 5: Solve for x
    x = 4,905,113.68/3,209.82
  6. Step 6: Final answer
    x = 1,528.16

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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.