Home / 5,449.69-8,175.75-1,986.94

Finding the Fourth Proportional to 5,449.69, 8,175.75 and 1,986.94

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Solution

The fourth proportional to 5,449.69, 8,175.75 and 1,986.94 is: 2,980.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,449.69 : 8,175.75 = 1,986.94 : x
  2. Step 2: Convert to fraction form
    5,449.69/8,175.75 = 1,986.94/x
  3. Step 3: Cross multiply
    5,449.69x = 8,175.75 × 1,986.94
  4. Step 4: Simplify right side
    5,449.69x = 16,244,704.27
  5. Step 5: Solve for x
    x = 16,244,704.27/5,449.69
  6. Step 6: Final answer
    x = 2,980.85

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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.