Home / 3,846.60-5,769.09-1,381.56

Finding the Fourth Proportional to 3,846.60, 5,769.09 and 1,381.56

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Solution

The fourth proportional to 3,846.60, 5,769.09 and 1,381.56 is: 2,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,846.60 : 5,769.09 = 1,381.56 : x
  2. Step 2: Convert to fraction form
    3,846.60/5,769.09 = 1,381.56/x
  3. Step 3: Cross multiply
    3,846.60x = 5,769.09 × 1,381.56
  4. Step 4: Simplify right side
    3,846.60x = 7,970,343.98
  5. Step 5: Solve for x
    x = 7,970,343.98/3,846.60
  6. Step 6: Final answer
    x = 2,072.05

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1.5x scale

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.