Home / 2,203.53-3,040.91-1,208.81

Finding the Fourth Proportional to 2,203.53, 3,040.91 and 1,208.81

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Solution

The fourth proportional to 2,203.53, 3,040.91 and 1,208.81 is: 1,668.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.53 : 3,040.91 = 1,208.81 : x
  2. Step 2: Convert to fraction form
    2,203.53/3,040.91 = 1,208.81/x
  3. Step 3: Cross multiply
    2,203.53x = 3,040.91 × 1,208.81
  4. Step 4: Simplify right side
    2,203.53x = 3,675,865.70
  5. Step 5: Solve for x
    x = 3,675,865.70/2,203.53
  6. Step 6: Final answer
    x = 1,668.17

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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.