Home / 4,305.78-6,458.70-1,185.96

Finding the Fourth Proportional to 4,305.78, 6,458.70 and 1,185.96

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Solution

The fourth proportional to 4,305.78, 6,458.70 and 1,185.96 is: 1,778.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.78 : 6,458.70 = 1,185.96 : x
  2. Step 2: Convert to fraction form
    4,305.78/6,458.70 = 1,185.96/x
  3. Step 3: Cross multiply
    4,305.78x = 6,458.70 × 1,185.96
  4. Step 4: Simplify right side
    4,305.78x = 7,659,753.30
  5. Step 5: Solve for x
    x = 7,659,753.30/4,305.78
  6. Step 6: Final answer
    x = 1,778.95

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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.