Home / 1,847.92-2,769.60-1,076.80

Finding the Fourth Proportional to 1,847.92, 2,769.60 and 1,076.80

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Solution

The fourth proportional to 1,847.92, 2,769.60 and 1,076.80 is: 1,613.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,847.92 : 2,769.60 = 1,076.80 : x
  2. Step 2: Convert to fraction form
    1,847.92/2,769.60 = 1,076.80/x
  3. Step 3: Cross multiply
    1,847.92x = 2,769.60 × 1,076.80
  4. Step 4: Simplify right side
    1,847.92x = 2,982,305.28
  5. Step 5: Solve for x
    x = 2,982,305.28/1,847.92
  6. Step 6: Final answer
    x = 1,613.87

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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.