Home / 3,079.52-4,249.76-1,682.32

Finding the Fourth Proportional to 3,079.52, 4,249.76 and 1,682.32

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Solution

The fourth proportional to 3,079.52, 4,249.76 and 1,682.32 is: 2,321.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.52 : 4,249.76 = 1,682.32 : x
  2. Step 2: Convert to fraction form
    3,079.52/4,249.76 = 1,682.32/x
  3. Step 3: Cross multiply
    3,079.52x = 4,249.76 × 1,682.32
  4. Step 4: Simplify right side
    3,079.52x = 7,149,456.24
  5. Step 5: Solve for x
    x = 7,149,456.24/3,079.52
  6. Step 6: Final answer
    x = 2,321.61

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1.5x scale

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.