Home / 1,805.73-2,490.59-1,199.38

Finding the Fourth Proportional to 1,805.73, 2,490.59 and 1,199.38

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Solution

The fourth proportional to 1,805.73, 2,490.59 and 1,199.38 is: 1,654.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,805.73 : 2,490.59 = 1,199.38 : x
  2. Step 2: Convert to fraction form
    1,805.73/2,490.59 = 1,199.38/x
  3. Step 3: Cross multiply
    1,805.73x = 2,490.59 × 1,199.38
  4. Step 4: Simplify right side
    1,805.73x = 2,987,168.91
  5. Step 5: Solve for x
    x = 2,987,168.91/1,805.73
  6. Step 6: Final answer
    x = 1,654.28

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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.