Home / 3,606.20-5,408.40-1,384.55

Finding the Fourth Proportional to 3,606.20, 5,408.40 and 1,384.55

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Solution

The fourth proportional to 3,606.20, 5,408.40 and 1,384.55 is: 2,076.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606.20 : 5,408.40 = 1,384.55 : x
  2. Step 2: Convert to fraction form
    3,606.20/5,408.40 = 1,384.55/x
  3. Step 3: Cross multiply
    3,606.20x = 5,408.40 × 1,384.55
  4. Step 4: Simplify right side
    3,606.20x = 7,488,200.22
  5. Step 5: Solve for x
    x = 7,488,200.22/3,606.20
  6. Step 6: Final answer
    x = 2,076.48

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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.