Home / 3,279.59-4,920.03-1,199.40

Finding the Fourth Proportional to 3,279.59, 4,920.03 and 1,199.40

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Solution

The fourth proportional to 3,279.59, 4,920.03 and 1,199.40 is: 1,799.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.59 : 4,920.03 = 1,199.40 : x
  2. Step 2: Convert to fraction form
    3,279.59/4,920.03 = 1,199.40/x
  3. Step 3: Cross multiply
    3,279.59x = 4,920.03 × 1,199.40
  4. Step 4: Simplify right side
    3,279.59x = 5,901,083.98
  5. Step 5: Solve for x
    x = 5,901,083.98/3,279.59
  6. Step 6: Final answer
    x = 1,799.34

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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.