Home / 3,584.80-5,378.56-1,394.16

Finding the Fourth Proportional to 3,584.80, 5,378.56 and 1,394.16

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Solution

The fourth proportional to 3,584.80, 5,378.56 and 1,394.16 is: 2,091.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,584.80 : 5,378.56 = 1,394.16 : x
  2. Step 2: Convert to fraction form
    3,584.80/5,378.56 = 1,394.16/x
  3. Step 3: Cross multiply
    3,584.80x = 5,378.56 × 1,394.16
  4. Step 4: Simplify right side
    3,584.80x = 7,498,573.21
  5. Step 5: Solve for x
    x = 7,498,573.21/3,584.80
  6. Step 6: Final answer
    x = 2,091.77

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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.