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Finding the Fourth Proportional to 2,932.22, 4,047.78 and 1,871.41

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Solution

The fourth proportional to 2,932.22, 4,047.78 and 1,871.41 is: 2,583.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,932.22 : 4,047.78 = 1,871.41 : x
  2. Step 2: Convert to fraction form
    2,932.22/4,047.78 = 1,871.41/x
  3. Step 3: Cross multiply
    2,932.22x = 4,047.78 × 1,871.41
  4. Step 4: Simplify right side
    2,932.22x = 7,575,055.97
  5. Step 5: Solve for x
    x = 7,575,055.97/2,932.22
  6. Step 6: Final answer
    x = 2,583.39

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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.