Home / 1,418.51-1,952.69-1,230.89

Finding the Fourth Proportional to 1,418.51, 1,952.69 and 1,230.89

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Solution

The fourth proportional to 1,418.51, 1,952.69 and 1,230.89 is: 1,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418.51 : 1,952.69 = 1,230.89 : x
  2. Step 2: Convert to fraction form
    1,418.51/1,952.69 = 1,230.89/x
  3. Step 3: Cross multiply
    1,418.51x = 1,952.69 × 1,230.89
  4. Step 4: Simplify right side
    1,418.51x = 2,403,540.44
  5. Step 5: Solve for x
    x = 2,403,540.44/1,418.51
  6. Step 6: Final answer
    x = 1,694.42

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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.