Home / 5,485.72-8,226.79-1,786.97

Finding the Fourth Proportional to 5,485.72, 8,226.79 and 1,786.97

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Solution

The fourth proportional to 5,485.72, 8,226.79 and 1,786.97 is: 2,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,485.72 : 8,226.79 = 1,786.97 : x
  2. Step 2: Convert to fraction form
    5,485.72/8,226.79 = 1,786.97/x
  3. Step 3: Cross multiply
    5,485.72x = 8,226.79 × 1,786.97
  4. Step 4: Simplify right side
    5,485.72x = 14,701,026.93
  5. Step 5: Solve for x
    x = 14,701,026.93/5,485.72
  6. Step 6: Final answer
    x = 2,679.87

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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.