Home / 2,971.90-4,100.38-2,132.34

Finding the Fourth Proportional to 2,971.90, 4,100.38 and 2,132.34

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Solution

The fourth proportional to 2,971.90, 4,100.38 and 2,132.34 is: 2,942.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.90 : 4,100.38 = 2,132.34 : x
  2. Step 2: Convert to fraction form
    2,971.90/4,100.38 = 2,132.34/x
  3. Step 3: Cross multiply
    2,971.90x = 4,100.38 × 2,132.34
  4. Step 4: Simplify right side
    2,971.90x = 8,743,404.29
  5. Step 5: Solve for x
    x = 8,743,404.29/2,971.90
  6. Step 6: Final answer
    x = 2,942.03

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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.