Home / 2,087.93-3,131.30-626.73

Finding the Fourth Proportional to 2,087.93, 3,131.30 and 626.73

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Solution

The fourth proportional to 2,087.93, 3,131.30 and 626.73 is: 939.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.93 : 3,131.30 = 626.73 : x
  2. Step 2: Convert to fraction form
    2,087.93/3,131.30 = 626.73/x
  3. Step 3: Cross multiply
    2,087.93x = 3,131.30 × 626.73
  4. Step 4: Simplify right side
    2,087.93x = 1,962,479.65
  5. Step 5: Solve for x
    x = 1,962,479.65/2,087.93
  6. Step 6: Final answer
    x = 939.92

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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.