Home / 4,140.75-6,209.80-1,366.80

Finding the Fourth Proportional to 4,140.75, 6,209.80 and 1,366.80

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Solution

The fourth proportional to 4,140.75, 6,209.80 and 1,366.80 is: 2,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,140.75 : 6,209.80 = 1,366.80 : x
  2. Step 2: Convert to fraction form
    4,140.75/6,209.80 = 1,366.80/x
  3. Step 3: Cross multiply
    4,140.75x = 6,209.80 × 1,366.80
  4. Step 4: Simplify right side
    4,140.75x = 8,487,554.64
  5. Step 5: Solve for x
    x = 8,487,554.64/4,140.75
  6. Step 6: Final answer
    x = 2,049.76

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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.