Home / 2,087.88-3,131.07-700.92

Finding the Fourth Proportional to 2,087.88, 3,131.07 and 700.92

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Solution

The fourth proportional to 2,087.88, 3,131.07 and 700.92 is: 1,051.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.88 : 3,131.07 = 700.92 : x
  2. Step 2: Convert to fraction form
    2,087.88/3,131.07 = 700.92/x
  3. Step 3: Cross multiply
    2,087.88x = 3,131.07 × 700.92
  4. Step 4: Simplify right side
    2,087.88x = 2,194,629.58
  5. Step 5: Solve for x
    x = 2,194,629.58/2,087.88
  6. Step 6: Final answer
    x = 1,051.13

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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.