Home / 3,279.69-4,920.26-1,332.81

Finding the Fourth Proportional to 3,279.69, 4,920.26 and 1,332.81

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Solution

The fourth proportional to 3,279.69, 4,920.26 and 1,332.81 is: 1,999.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.69 : 4,920.26 = 1,332.81 : x
  2. Step 2: Convert to fraction form
    3,279.69/4,920.26 = 1,332.81/x
  3. Step 3: Cross multiply
    3,279.69x = 4,920.26 × 1,332.81
  4. Step 4: Simplify right side
    3,279.69x = 6,557,771.73
  5. Step 5: Solve for x
    x = 6,557,771.73/3,279.69
  6. Step 6: Final answer
    x = 1,999.51

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1.5x scale

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.