Home / 2,203.61-3,040.97-1,208.87

Finding the Fourth Proportional to 2,203.61, 3,040.97 and 1,208.87

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Solution

The fourth proportional to 2,203.61, 3,040.97 and 1,208.87 is: 1,668.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.61 : 3,040.97 = 1,208.87 : x
  2. Step 2: Convert to fraction form
    2,203.61/3,040.97 = 1,208.87/x
  3. Step 3: Cross multiply
    2,203.61x = 3,040.97 × 1,208.87
  4. Step 4: Simplify right side
    2,203.61x = 3,676,136.62
  5. Step 5: Solve for x
    x = 3,676,136.62/2,203.61
  6. Step 6: Final answer
    x = 1,668.23

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1.5x scale

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.