Home / 3,458.38-5,190.36-1,815.91

Finding the Fourth Proportional to 3,458.38, 5,190.36 and 1,815.91

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Solution

The fourth proportional to 3,458.38, 5,190.36 and 1,815.91 is: 2,725.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.38 : 5,190.36 = 1,815.91 : x
  2. Step 2: Convert to fraction form
    3,458.38/5,190.36 = 1,815.91/x
  3. Step 3: Cross multiply
    3,458.38x = 5,190.36 × 1,815.91
  4. Step 4: Simplify right side
    3,458.38x = 9,425,226.63
  5. Step 5: Solve for x
    x = 9,425,226.63/3,458.38
  6. Step 6: Final answer
    x = 2,725.33

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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.