Home / 1,811.44-2,715.16-1,185.99

Finding the Fourth Proportional to 1,811.44, 2,715.16 and 1,185.99

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Solution

The fourth proportional to 1,811.44, 2,715.16 and 1,185.99 is: 1,777.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,811.44 : 2,715.16 = 1,185.99 : x
  2. Step 2: Convert to fraction form
    1,811.44/2,715.16 = 1,185.99/x
  3. Step 3: Cross multiply
    1,811.44x = 2,715.16 × 1,185.99
  4. Step 4: Simplify right side
    1,811.44x = 3,220,152.61
  5. Step 5: Solve for x
    x = 3,220,152.61/1,811.44
  6. Step 6: Final answer
    x = 1,777.68

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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.