Home / 5,279.55-7,919.33-1,383.96

Finding the Fourth Proportional to 5,279.55, 7,919.33 and 1,383.96

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Solution

The fourth proportional to 5,279.55, 7,919.33 and 1,383.96 is: 2,075.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,279.55 : 7,919.33 = 1,383.96 : x
  2. Step 2: Convert to fraction form
    5,279.55/7,919.33 = 1,383.96/x
  3. Step 3: Cross multiply
    5,279.55x = 7,919.33 × 1,383.96
  4. Step 4: Simplify right side
    5,279.55x = 10,960,046.18
  5. Step 5: Solve for x
    x = 10,960,046.18/5,279.55
  6. Step 6: Final answer
    x = 2,075.94

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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.