Home / 2,996.78-4,134.26-1,948.94

Finding the Fourth Proportional to 2,996.78, 4,134.26 and 1,948.94

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Solution

The fourth proportional to 2,996.78, 4,134.26 and 1,948.94 is: 2,688.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,996.78 : 4,134.26 = 1,948.94 : x
  2. Step 2: Convert to fraction form
    2,996.78/4,134.26 = 1,948.94/x
  3. Step 3: Cross multiply
    2,996.78x = 4,134.26 × 1,948.94
  4. Step 4: Simplify right side
    2,996.78x = 8,057,424.68
  5. Step 5: Solve for x
    x = 8,057,424.68/2,996.78
  6. Step 6: Final answer
    x = 2,688.69

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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.