Home / 3,786.40-5,672.56-2,056.48

Finding the Fourth Proportional to 3,786.40, 5,672.56 and 2,056.48

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Solution

The fourth proportional to 3,786.40, 5,672.56 and 2,056.48 is: 3,080.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,786.40 : 5,672.56 = 2,056.48 : x
  2. Step 2: Convert to fraction form
    3,786.40/5,672.56 = 2,056.48/x
  3. Step 3: Cross multiply
    3,786.40x = 5,672.56 × 2,056.48
  4. Step 4: Simplify right side
    3,786.40x = 11,665,506.19
  5. Step 5: Solve for x
    x = 11,665,506.19/3,786.40
  6. Step 6: Final answer
    x = 3,080.90

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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.