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Finding the Fourth Proportional to 1,998.36, 2,998.56 and 1,514.39

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Solution

The fourth proportional to 1,998.36, 2,998.56 and 1,514.39 is: 2,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,998.36 : 2,998.56 = 1,514.39 : x
  2. Step 2: Convert to fraction form
    1,998.36/2,998.56 = 1,514.39/x
  3. Step 3: Cross multiply
    1,998.36x = 2,998.56 × 1,514.39
  4. Step 4: Simplify right side
    1,998.36x = 4,540,974.29
  5. Step 5: Solve for x
    x = 4,540,974.29/1,998.36
  6. Step 6: Final answer
    x = 2,272.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.