Home / 2,998.14-4,131.36-2,321.87

Finding the Fourth Proportional to 2,998.14, 4,131.36 and 2,321.87

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Solution

The fourth proportional to 2,998.14, 4,131.36 and 2,321.87 is: 3,199.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,998.14 : 4,131.36 = 2,321.87 : x
  2. Step 2: Convert to fraction form
    2,998.14/4,131.36 = 2,321.87/x
  3. Step 3: Cross multiply
    2,998.14x = 4,131.36 × 2,321.87
  4. Step 4: Simplify right side
    2,998.14x = 9,592,460.19
  5. Step 5: Solve for x
    x = 9,592,460.19/2,998.14
  6. Step 6: Final answer
    x = 3,199.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.