Home / 2,971.22-4,100.11-1,644.84

Finding the Fourth Proportional to 2,971.22, 4,100.11 and 1,644.84

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Solution

The fourth proportional to 2,971.22, 4,100.11 and 1,644.84 is: 2,269.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,971.22 : 4,100.11 = 1,644.84 : x
  2. Step 2: Convert to fraction form
    2,971.22/4,100.11 = 1,644.84/x
  3. Step 3: Cross multiply
    2,971.22x = 4,100.11 × 1,644.84
  4. Step 4: Simplify right side
    2,971.22x = 6,744,024.93
  5. Step 5: Solve for x
    x = 6,744,024.93/2,971.22
  6. Step 6: Final answer
    x = 2,269.78

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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.