Home / 3,816.32-5,724.41-1,219.28

Finding the Fourth Proportional to 3,816.32, 5,724.41 and 1,219.28

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Solution

The fourth proportional to 3,816.32, 5,724.41 and 1,219.28 is: 1,828.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.32 : 5,724.41 = 1,219.28 : x
  2. Step 2: Convert to fraction form
    3,816.32/5,724.41 = 1,219.28/x
  3. Step 3: Cross multiply
    3,816.32x = 5,724.41 × 1,219.28
  4. Step 4: Simplify right side
    3,816.32x = 6,979,623.91
  5. Step 5: Solve for x
    x = 6,979,623.91/3,816.32
  6. Step 6: Final answer
    x = 1,828.89

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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.