Home / 3,678.94-5,518.67-1,081.99

Finding the Fourth Proportional to 3,678.94, 5,518.67 and 1,081.99

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Solution

The fourth proportional to 3,678.94, 5,518.67 and 1,081.99 is: 1,623.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,678.94 : 5,518.67 = 1,081.99 : x
  2. Step 2: Convert to fraction form
    3,678.94/5,518.67 = 1,081.99/x
  3. Step 3: Cross multiply
    3,678.94x = 5,518.67 × 1,081.99
  4. Step 4: Simplify right side
    3,678.94x = 5,971,120.86
  5. Step 5: Solve for x
    x = 5,971,120.86/3,678.94
  6. Step 6: Final answer
    x = 1,623.06

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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.