Home / 2,203.62-3,038.82-1,890

Finding the Fourth Proportional to 2,203.62, 3,038.82 and 1,890

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Solution

The fourth proportional to 2,203.62, 3,038.82 and 1,890 is: 2,606.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,203.62 : 3,038.82 = 1,890 : x
  2. Step 2: Convert to fraction form
    2,203.62/3,038.82 = 1,890/x
  3. Step 3: Cross multiply
    2,203.62x = 3,038.82 × 1,890
  4. Step 4: Simplify right side
    2,203.62x = 5,743,369.80
  5. Step 5: Solve for x
    x = 5,743,369.80/2,203.62
  6. Step 6: Final answer
    x = 2,606.33

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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.