Home / 3,687.58-5,087.37-2,270.08

Finding the Fourth Proportional to 3,687.58, 5,087.37 and 2,270.08

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Solution

The fourth proportional to 3,687.58, 5,087.37 and 2,270.08 is: 3,131.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,687.58 : 5,087.37 = 2,270.08 : x
  2. Step 2: Convert to fraction form
    3,687.58/5,087.37 = 2,270.08/x
  3. Step 3: Cross multiply
    3,687.58x = 5,087.37 × 2,270.08
  4. Step 4: Simplify right side
    3,687.58x = 11,548,736.89
  5. Step 5: Solve for x
    x = 11,548,736.89/3,687.58
  6. Step 6: Final answer
    x = 3,131.79

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1.5x scale

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.