Home / 5,488.43-8,231.79-1,790.66

Finding the Fourth Proportional to 5,488.43, 8,231.79 and 1,790.66

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Solution

The fourth proportional to 5,488.43, 8,231.79 and 1,790.66 is: 2,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,488.43 : 8,231.79 = 1,790.66 : x
  2. Step 2: Convert to fraction form
    5,488.43/8,231.79 = 1,790.66/x
  3. Step 3: Cross multiply
    5,488.43x = 8,231.79 × 1,790.66
  4. Step 4: Simplify right side
    5,488.43x = 14,740,318.07
  5. Step 5: Solve for x
    x = 14,740,318.07/5,488.43
  6. Step 6: Final answer
    x = 2,685.71

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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.