Home / 4,251.09-6,379.10-1,785.70

Finding the Fourth Proportional to 4,251.09, 6,379.10 and 1,785.70

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Solution

The fourth proportional to 4,251.09, 6,379.10 and 1,785.70 is: 2,679.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,251.09 : 6,379.10 = 1,785.70 : x
  2. Step 2: Convert to fraction form
    4,251.09/6,379.10 = 1,785.70/x
  3. Step 3: Cross multiply
    4,251.09x = 6,379.10 × 1,785.70
  4. Step 4: Simplify right side
    4,251.09x = 11,391,158.87
  5. Step 5: Solve for x
    x = 11,391,158.87/4,251.09
  6. Step 6: Final answer
    x = 2,679.59

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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.