Home / 2,687.37-4,027.81-1,145.13

Finding the Fourth Proportional to 2,687.37, 4,027.81 and 1,145.13

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Solution

The fourth proportional to 2,687.37, 4,027.81 and 1,145.13 is: 1,716.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,687.37 : 4,027.81 = 1,145.13 : x
  2. Step 2: Convert to fraction form
    2,687.37/4,027.81 = 1,145.13/x
  3. Step 3: Cross multiply
    2,687.37x = 4,027.81 × 1,145.13
  4. Step 4: Simplify right side
    2,687.37x = 4,612,366.07
  5. Step 5: Solve for x
    x = 4,612,366.07/2,687.37
  6. Step 6: Final answer
    x = 1,716.31

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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.