Home / 4,185.32-6,279.12-1,721.88

Finding the Fourth Proportional to 4,185.32, 6,279.12 and 1,721.88

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Solution

The fourth proportional to 4,185.32, 6,279.12 and 1,721.88 is: 2,583.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.32 : 6,279.12 = 1,721.88 : x
  2. Step 2: Convert to fraction form
    4,185.32/6,279.12 = 1,721.88/x
  3. Step 3: Cross multiply
    4,185.32x = 6,279.12 × 1,721.88
  4. Step 4: Simplify right side
    4,185.32x = 10,811,891.15
  5. Step 5: Solve for x
    x = 10,811,891.15/4,185.32
  6. Step 6: Final answer
    x = 2,583.29

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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.