Home / 1,816.08-2,504.49-1,185.90

Finding the Fourth Proportional to 1,816.08, 2,504.49 and 1,185.90

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Solution

The fourth proportional to 1,816.08, 2,504.49 and 1,185.90 is: 1,635.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,816.08 : 2,504.49 = 1,185.90 : x
  2. Step 2: Convert to fraction form
    1,816.08/2,504.49 = 1,185.90/x
  3. Step 3: Cross multiply
    1,816.08x = 2,504.49 × 1,185.90
  4. Step 4: Simplify right side
    1,816.08x = 2,970,074.69
  5. Step 5: Solve for x
    x = 2,970,074.69/1,816.08
  6. Step 6: Final answer
    x = 1,635.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.