Home / 2,208.05-3,046.96-1,213.31

Finding the Fourth Proportional to 2,208.05, 3,046.96 and 1,213.31

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Solution

The fourth proportional to 2,208.05, 3,046.96 and 1,213.31 is: 1,674.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,208.05 : 3,046.96 = 1,213.31 : x
  2. Step 2: Convert to fraction form
    2,208.05/3,046.96 = 1,213.31/x
  3. Step 3: Cross multiply
    2,208.05x = 3,046.96 × 1,213.31
  4. Step 4: Simplify right side
    2,208.05x = 3,696,899.03
  5. Step 5: Solve for x
    x = 3,696,899.03/2,208.05
  6. Step 6: Final answer
    x = 1,674.28

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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.