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Finding the Fourth Proportional to 3,618.99, 4,993.40 and 2,203.41

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Solution

The fourth proportional to 3,618.99, 4,993.40 and 2,203.41 is: 3,040.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,618.99 : 4,993.40 = 2,203.41 : x
  2. Step 2: Convert to fraction form
    3,618.99/4,993.40 = 2,203.41/x
  3. Step 3: Cross multiply
    3,618.99x = 4,993.40 × 2,203.41
  4. Step 4: Simplify right side
    3,618.99x = 11,002,496.48
  5. Step 5: Solve for x
    x = 11,002,496.48/3,618.99
  6. Step 6: Final answer
    x = 3,040.21

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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.