Home / 2,926.88-4,040.20-1,987.54

Finding the Fourth Proportional to 2,926.88, 4,040.20 and 1,987.54

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Solution

The fourth proportional to 2,926.88, 4,040.20 and 1,987.54 is: 2,743.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,926.88 : 4,040.20 = 1,987.54 : x
  2. Step 2: Convert to fraction form
    2,926.88/4,040.20 = 1,987.54/x
  3. Step 3: Cross multiply
    2,926.88x = 4,040.20 × 1,987.54
  4. Step 4: Simplify right side
    2,926.88x = 8,030,059.11
  5. Step 5: Solve for x
    x = 8,030,059.11/2,926.88
  6. Step 6: Final answer
    x = 2,743.56

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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.