Home / 2,769.78-4,158.30-1,948.44

Finding the Fourth Proportional to 2,769.78, 4,158.30 and 1,948.44

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Solution

The fourth proportional to 2,769.78, 4,158.30 and 1,948.44 is: 2,925.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.78 : 4,158.30 = 1,948.44 : x
  2. Step 2: Convert to fraction form
    2,769.78/4,158.30 = 1,948.44/x
  3. Step 3: Cross multiply
    2,769.78x = 4,158.30 × 1,948.44
  4. Step 4: Simplify right side
    2,769.78x = 8,102,198.05
  5. Step 5: Solve for x
    x = 8,102,198.05/2,769.78
  6. Step 6: Final answer
    x = 2,925.21

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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.