Home / 2,769.90-3,813.71-2,349.37

Finding the Fourth Proportional to 2,769.90, 3,813.71 and 2,349.37

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Solution

The fourth proportional to 2,769.90, 3,813.71 and 2,349.37 is: 3,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,769.90 : 3,813.71 = 2,349.37 : x
  2. Step 2: Convert to fraction form
    2,769.90/3,813.71 = 2,349.37/x
  3. Step 3: Cross multiply
    2,769.90x = 3,813.71 × 2,349.37
  4. Step 4: Simplify right side
    2,769.90x = 8,959,815.86
  5. Step 5: Solve for x
    x = 8,959,815.86/2,769.90
  6. Step 6: Final answer
    x = 3,234.71

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1.5x scale

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.