Home / 3,660.19-5,486.94-1,318.28

Finding the Fourth Proportional to 3,660.19, 5,486.94 and 1,318.28

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Solution

The fourth proportional to 3,660.19, 5,486.94 and 1,318.28 is: 1,976.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,660.19 : 5,486.94 = 1,318.28 : x
  2. Step 2: Convert to fraction form
    3,660.19/5,486.94 = 1,318.28/x
  3. Step 3: Cross multiply
    3,660.19x = 5,486.94 × 1,318.28
  4. Step 4: Simplify right side
    3,660.19x = 7,233,295.83
  5. Step 5: Solve for x
    x = 7,233,295.83/3,660.19
  6. Step 6: Final answer
    x = 1,976.21

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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.