Home / 2,170.08-3,249.87-1,242.82

Finding the Fourth Proportional to 2,170.08, 3,249.87 and 1,242.82

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Solution

The fourth proportional to 2,170.08, 3,249.87 and 1,242.82 is: 1,861.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.08 : 3,249.87 = 1,242.82 : x
  2. Step 2: Convert to fraction form
    2,170.08/3,249.87 = 1,242.82/x
  3. Step 3: Cross multiply
    2,170.08x = 3,249.87 × 1,242.82
  4. Step 4: Simplify right side
    2,170.08x = 4,039,003.43
  5. Step 5: Solve for x
    x = 4,039,003.43/2,170.08
  6. Step 6: Final answer
    x = 1,861.23

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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.