Home / 3,079.56-4,249.68-1,682.28

Finding the Fourth Proportional to 3,079.56, 4,249.68 and 1,682.28

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Solution

The fourth proportional to 3,079.56, 4,249.68 and 1,682.28 is: 2,321.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,079.56 : 4,249.68 = 1,682.28 : x
  2. Step 2: Convert to fraction form
    3,079.56/4,249.68 = 1,682.28/x
  3. Step 3: Cross multiply
    3,079.56x = 4,249.68 × 1,682.28
  4. Step 4: Simplify right side
    3,079.56x = 7,149,151.67
  5. Step 5: Solve for x
    x = 7,149,151.67/3,079.56
  6. Step 6: Final answer
    x = 2,321.48

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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.