Home / 2,087.65-3,131.42-527.70

Finding the Fourth Proportional to 2,087.65, 3,131.42 and 527.70

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Solution

The fourth proportional to 2,087.65, 3,131.42 and 527.70 is: 791.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087.65 : 3,131.42 = 527.70 : x
  2. Step 2: Convert to fraction form
    2,087.65/3,131.42 = 527.70/x
  3. Step 3: Cross multiply
    2,087.65x = 3,131.42 × 527.70
  4. Step 4: Simplify right side
    2,087.65x = 1,652,450.33
  5. Step 5: Solve for x
    x = 1,652,450.33/2,087.65
  6. Step 6: Final answer
    x = 791.54

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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.