Home / 4,309.54-6,464.45-1,189.78

Finding the Fourth Proportional to 4,309.54, 6,464.45 and 1,189.78

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Solution

The fourth proportional to 4,309.54, 6,464.45 and 1,189.78 is: 1,784.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,309.54 : 6,464.45 = 1,189.78 : x
  2. Step 2: Convert to fraction form
    4,309.54/6,464.45 = 1,189.78/x
  3. Step 3: Cross multiply
    4,309.54x = 6,464.45 × 1,189.78
  4. Step 4: Simplify right side
    4,309.54x = 7,691,273.32
  5. Step 5: Solve for x
    x = 7,691,273.32/4,309.54
  6. Step 6: Final answer
    x = 1,784.71

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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.