Home / 3,684.64-5,527.19-1,218.80

Finding the Fourth Proportional to 3,684.64, 5,527.19 and 1,218.80

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Solution

The fourth proportional to 3,684.64, 5,527.19 and 1,218.80 is: 1,828.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,684.64 : 5,527.19 = 1,218.80 : x
  2. Step 2: Convert to fraction form
    3,684.64/5,527.19 = 1,218.80/x
  3. Step 3: Cross multiply
    3,684.64x = 5,527.19 × 1,218.80
  4. Step 4: Simplify right side
    3,684.64x = 6,736,518.09
  5. Step 5: Solve for x
    x = 6,736,518.09/3,684.64
  6. Step 6: Final answer
    x = 1,828.27

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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.