Home / 3,399.85-4,691.88-1,907.89

Finding the Fourth Proportional to 3,399.85, 4,691.88 and 1,907.89

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Solution

The fourth proportional to 3,399.85, 4,691.88 and 1,907.89 is: 2,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,399.85 : 4,691.88 = 1,907.89 : x
  2. Step 2: Convert to fraction form
    3,399.85/4,691.88 = 1,907.89/x
  3. Step 3: Cross multiply
    3,399.85x = 4,691.88 × 1,907.89
  4. Step 4: Simplify right side
    3,399.85x = 8,951,579.20
  5. Step 5: Solve for x
    x = 8,951,579.20/3,399.85
  6. Step 6: Final answer
    x = 2,632.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.