Home / 3,816.18-5,724.81-1,218.51

Finding the Fourth Proportional to 3,816.18, 5,724.81 and 1,218.51

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Solution

The fourth proportional to 3,816.18, 5,724.81 and 1,218.51 is: 1,827.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,816.18 : 5,724.81 = 1,218.51 : x
  2. Step 2: Convert to fraction form
    3,816.18/5,724.81 = 1,218.51/x
  3. Step 3: Cross multiply
    3,816.18x = 5,724.81 × 1,218.51
  4. Step 4: Simplify right side
    3,816.18x = 6,975,738.23
  5. Step 5: Solve for x
    x = 6,975,738.23/3,816.18
  6. Step 6: Final answer
    x = 1,827.94

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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.