Home / 3,279.16-4,920.18-1,332.64

Finding the Fourth Proportional to 3,279.16, 4,920.18 and 1,332.64

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Solution

The fourth proportional to 3,279.16, 4,920.18 and 1,332.64 is: 1,999.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,279.16 : 4,920.18 = 1,332.64 : x
  2. Step 2: Convert to fraction form
    3,279.16/4,920.18 = 1,332.64/x
  3. Step 3: Cross multiply
    3,279.16x = 4,920.18 × 1,332.64
  4. Step 4: Simplify right side
    3,279.16x = 6,556,828.68
  5. Step 5: Solve for x
    x = 6,556,828.68/3,279.16
  6. Step 6: Final answer
    x = 1,999.55

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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.