Home / 3,816.05-5,721.80-1,182.78

Finding the Fourth Proportional to 3,816.05, 5,721.80 and 1,182.78

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Solution

The fourth proportional to 3,816.05, 5,721.80 and 1,182.78 is: 1,773.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.05 : 5,721.80 = 1,182.78 : x
  2. Step 2: Convert to fraction form
    3,816.05/5,721.80 = 1,182.78/x
  3. Step 3: Cross multiply
    3,816.05x = 5,721.80 × 1,182.78
  4. Step 4: Simplify right side
    3,816.05x = 6,767,630.60
  5. Step 5: Solve for x
    x = 6,767,630.60/3,816.05
  6. Step 6: Final answer
    x = 1,773.46

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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.