Home / 2,772.09-4,147.61-1,540.49

Finding the Fourth Proportional to 2,772.09, 4,147.61 and 1,540.49

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Solution

The fourth proportional to 2,772.09, 4,147.61 and 1,540.49 is: 2,304.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.09 : 4,147.61 = 1,540.49 : x
  2. Step 2: Convert to fraction form
    2,772.09/4,147.61 = 1,540.49/x
  3. Step 3: Cross multiply
    2,772.09x = 4,147.61 × 1,540.49
  4. Step 4: Simplify right side
    2,772.09x = 6,389,323.29
  5. Step 5: Solve for x
    x = 6,389,323.29/2,772.09
  6. Step 6: Final answer
    x = 2,304.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.