Home / 4,138.80-6,208.32-1,673.28

Finding the Fourth Proportional to 4,138.80, 6,208.32 and 1,673.28

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Solution

The fourth proportional to 4,138.80, 6,208.32 and 1,673.28 is: 2,509.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,138.80 : 6,208.32 = 1,673.28 : x
  2. Step 2: Convert to fraction form
    4,138.80/6,208.32 = 1,673.28/x
  3. Step 3: Cross multiply
    4,138.80x = 6,208.32 × 1,673.28
  4. Step 4: Simplify right side
    4,138.80x = 10,388,257.69
  5. Step 5: Solve for x
    x = 10,388,257.69/4,138.80
  6. Step 6: Final answer
    x = 2,509.97

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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.