Home / 2,089.14-3,131-1,868.46

Finding the Fourth Proportional to 2,089.14, 3,131 and 1,868.46

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Solution

The fourth proportional to 2,089.14, 3,131 and 1,868.46 is: 2,800.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,089.14 : 3,131 = 1,868.46 : x
  2. Step 2: Convert to fraction form
    2,089.14/3,131 = 1,868.46/x
  3. Step 3: Cross multiply
    2,089.14x = 3,131 × 1,868.46
  4. Step 4: Simplify right side
    2,089.14x = 5,850,148.26
  5. Step 5: Solve for x
    x = 5,850,148.26/2,089.14
  6. Step 6: Final answer
    x = 2,800.27

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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.