Home / 5,179.11-7,766.84-1,668.98

Finding the Fourth Proportional to 5,179.11, 7,766.84 and 1,668.98

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Solution

The fourth proportional to 5,179.11, 7,766.84 and 1,668.98 is: 2,502.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,179.11 : 7,766.84 = 1,668.98 : x
  2. Step 2: Convert to fraction form
    5,179.11/7,766.84 = 1,668.98/x
  3. Step 3: Cross multiply
    5,179.11x = 7,766.84 × 1,668.98
  4. Step 4: Simplify right side
    5,179.11x = 12,962,653.44
  5. Step 5: Solve for x
    x = 12,962,653.44/5,179.11
  6. Step 6: Final answer
    x = 2,502.87

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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.