Home / 2,291.94-3,159.92-1,871.88

Finding the Fourth Proportional to 2,291.94, 3,159.92 and 1,871.88

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Solution

The fourth proportional to 2,291.94, 3,159.92 and 1,871.88 is: 2,580.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,291.94 : 3,159.92 = 1,871.88 : x
  2. Step 2: Convert to fraction form
    2,291.94/3,159.92 = 1,871.88/x
  3. Step 3: Cross multiply
    2,291.94x = 3,159.92 × 1,871.88
  4. Step 4: Simplify right side
    2,291.94x = 5,914,991.05
  5. Step 5: Solve for x
    x = 5,914,991.05/2,291.94
  6. Step 6: Final answer
    x = 2,580.78

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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.