Home / 2,750.38-4,118.72-1,924.78

Finding the Fourth Proportional to 2,750.38, 4,118.72 and 1,924.78

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Solution

The fourth proportional to 2,750.38, 4,118.72 and 1,924.78 is: 2,882.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,750.38 : 4,118.72 = 1,924.78 : x
  2. Step 2: Convert to fraction form
    2,750.38/4,118.72 = 1,924.78/x
  3. Step 3: Cross multiply
    2,750.38x = 4,118.72 × 1,924.78
  4. Step 4: Simplify right side
    2,750.38x = 7,927,629.88
  5. Step 5: Solve for x
    x = 7,927,629.88/2,750.38
  6. Step 6: Final answer
    x = 2,882.38

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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.