Home / 1,540.44-2,125.33-911.04

Finding the Fourth Proportional to 1,540.44, 2,125.33 and 911.04

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Solution

The fourth proportional to 1,540.44, 2,125.33 and 911.04 is: 1,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540.44 : 2,125.33 = 911.04 : x
  2. Step 2: Convert to fraction form
    1,540.44/2,125.33 = 911.04/x
  3. Step 3: Cross multiply
    1,540.44x = 2,125.33 × 911.04
  4. Step 4: Simplify right side
    1,540.44x = 1,936,260.64
  5. Step 5: Solve for x
    x = 1,936,260.64/1,540.44
  6. Step 6: Final answer
    x = 1,256.95

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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.