Home / 2,786.53-4,181.61-1,206.80

Finding the Fourth Proportional to 2,786.53, 4,181.61 and 1,206.80

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Solution

The fourth proportional to 2,786.53, 4,181.61 and 1,206.80 is: 1,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,786.53 : 4,181.61 = 1,206.80 : x
  2. Step 2: Convert to fraction form
    2,786.53/4,181.61 = 1,206.80/x
  3. Step 3: Cross multiply
    2,786.53x = 4,181.61 × 1,206.80
  4. Step 4: Simplify right side
    2,786.53x = 5,046,346.04
  5. Step 5: Solve for x
    x = 5,046,346.04/2,786.53
  6. Step 6: Final answer
    x = 1,810.98

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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.