Home / 2,087.07-3,131.75-1,163.14

Finding the Fourth Proportional to 2,087.07, 3,131.75 and 1,163.14

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Solution

The fourth proportional to 2,087.07, 3,131.75 and 1,163.14 is: 1,745.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.07 : 3,131.75 = 1,163.14 : x
  2. Step 2: Convert to fraction form
    2,087.07/3,131.75 = 1,163.14/x
  3. Step 3: Cross multiply
    2,087.07x = 3,131.75 × 1,163.14
  4. Step 4: Simplify right side
    2,087.07x = 3,642,674.71
  5. Step 5: Solve for x
    x = 3,642,674.71/2,087.07
  6. Step 6: Final answer
    x = 1,745.36

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1.5x scale

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.