Home / 3,458.89-5,188.11-1,118.85

Finding the Fourth Proportional to 3,458.89, 5,188.11 and 1,118.85

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Solution

The fourth proportional to 3,458.89, 5,188.11 and 1,118.85 is: 1,678.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,458.89 : 5,188.11 = 1,118.85 : x
  2. Step 2: Convert to fraction form
    3,458.89/5,188.11 = 1,118.85/x
  3. Step 3: Cross multiply
    3,458.89x = 5,188.11 × 1,118.85
  4. Step 4: Simplify right side
    3,458.89x = 5,804,716.87
  5. Step 5: Solve for x
    x = 5,804,716.87/3,458.89
  6. Step 6: Final answer
    x = 1,678.20

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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.