Home / 2,129.36-3,198.90-1,514.58

Finding the Fourth Proportional to 2,129.36, 3,198.90 and 1,514.58

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Solution

The fourth proportional to 2,129.36, 3,198.90 and 1,514.58 is: 2,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,129.36 : 3,198.90 = 1,514.58 : x
  2. Step 2: Convert to fraction form
    2,129.36/3,198.90 = 1,514.58/x
  3. Step 3: Cross multiply
    2,129.36x = 3,198.90 × 1,514.58
  4. Step 4: Simplify right side
    2,129.36x = 4,844,989.96
  5. Step 5: Solve for x
    x = 4,844,989.96/2,129.36
  6. Step 6: Final answer
    x = 2,275.33

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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.