Home / 4,305.26-6,458.80-1,385.61

Finding the Fourth Proportional to 4,305.26, 6,458.80 and 1,385.61

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Solution

The fourth proportional to 4,305.26, 6,458.80 and 1,385.61 is: 2,078.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,305.26 : 6,458.80 = 1,385.61 : x
  2. Step 2: Convert to fraction form
    4,305.26/6,458.80 = 1,385.61/x
  3. Step 3: Cross multiply
    4,305.26x = 6,458.80 × 1,385.61
  4. Step 4: Simplify right side
    4,305.26x = 8,949,377.87
  5. Step 5: Solve for x
    x = 8,949,377.87/4,305.26
  6. Step 6: Final answer
    x = 2,078.71

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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.