Home / 2,179.86-3,249.26-2,004.90

Finding the Fourth Proportional to 2,179.86, 3,249.26 and 2,004.90

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Solution

The fourth proportional to 2,179.86, 3,249.26 and 2,004.90 is: 2,988.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,179.86 : 3,249.26 = 2,004.90 : x
  2. Step 2: Convert to fraction form
    2,179.86/3,249.26 = 2,004.90/x
  3. Step 3: Cross multiply
    2,179.86x = 3,249.26 × 2,004.90
  4. Step 4: Simplify right side
    2,179.86x = 6,514,431.35
  5. Step 5: Solve for x
    x = 6,514,431.35/2,179.86
  6. Step 6: Final answer
    x = 2,988.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.