Home / 3,694.40-5,540.52-1,385.36

Finding the Fourth Proportional to 3,694.40, 5,540.52 and 1,385.36

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Solution

The fourth proportional to 3,694.40, 5,540.52 and 1,385.36 is: 2,077.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,694.40 : 5,540.52 = 1,385.36 : x
  2. Step 2: Convert to fraction form
    3,694.40/5,540.52 = 1,385.36/x
  3. Step 3: Cross multiply
    3,694.40x = 5,540.52 × 1,385.36
  4. Step 4: Simplify right side
    3,694.40x = 7,675,614.79
  5. Step 5: Solve for x
    x = 7,675,614.79/3,694.40
  6. Step 6: Final answer
    x = 2,077.64

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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.