Home / 3,206.09-4,807.42-1,645.45

Finding the Fourth Proportional to 3,206.09, 4,807.42 and 1,645.45

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Solution

The fourth proportional to 3,206.09, 4,807.42 and 1,645.45 is: 2,467.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.09 : 4,807.42 = 1,645.45 : x
  2. Step 2: Convert to fraction form
    3,206.09/4,807.42 = 1,645.45/x
  3. Step 3: Cross multiply
    3,206.09x = 4,807.42 × 1,645.45
  4. Step 4: Simplify right side
    3,206.09x = 7,910,369.24
  5. Step 5: Solve for x
    x = 7,910,369.24/3,206.09
  6. Step 6: Final answer
    x = 2,467.29

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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.