Home / 4,279.62-6,419.97-1,813.98

Finding the Fourth Proportional to 4,279.62, 6,419.97 and 1,813.98

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Solution

The fourth proportional to 4,279.62, 6,419.97 and 1,813.98 is: 2,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,279.62 : 6,419.97 = 1,813.98 : x
  2. Step 2: Convert to fraction form
    4,279.62/6,419.97 = 1,813.98/x
  3. Step 3: Cross multiply
    4,279.62x = 6,419.97 × 1,813.98
  4. Step 4: Simplify right side
    4,279.62x = 11,645,697.18
  5. Step 5: Solve for x
    x = 11,645,697.18/4,279.62
  6. Step 6: Final answer
    x = 2,721.20

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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.