Home / 3,558.20-5,338.90-1,609.40

Finding the Fourth Proportional to 3,558.20, 5,338.90 and 1,609.40

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Solution

The fourth proportional to 3,558.20, 5,338.90 and 1,609.40 is: 2,414.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,558.20 : 5,338.90 = 1,609.40 : x
  2. Step 2: Convert to fraction form
    3,558.20/5,338.90 = 1,609.40/x
  3. Step 3: Cross multiply
    3,558.20x = 5,338.90 × 1,609.40
  4. Step 4: Simplify right side
    3,558.20x = 8,592,425.66
  5. Step 5: Solve for x
    x = 8,592,425.66/3,558.20
  6. Step 6: Final answer
    x = 2,414.82

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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.