Home / 4,511.23-6,766.89-1,391.21

Finding the Fourth Proportional to 4,511.23, 6,766.89 and 1,391.21

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Solution

The fourth proportional to 4,511.23, 6,766.89 and 1,391.21 is: 2,086.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,511.23 : 6,766.89 = 1,391.21 : x
  2. Step 2: Convert to fraction form
    4,511.23/6,766.89 = 1,391.21/x
  3. Step 3: Cross multiply
    4,511.23x = 6,766.89 × 1,391.21
  4. Step 4: Simplify right side
    4,511.23x = 9,414,131.20
  5. Step 5: Solve for x
    x = 9,414,131.20/4,511.23
  6. Step 6: Final answer
    x = 2,086.82

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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.