Home / 5,479.77-8,221.72-3,290.02

Finding the Fourth Proportional to 5,479.77, 8,221.72 and 3,290.02

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Solution

The fourth proportional to 5,479.77, 8,221.72 and 3,290.02 is: 4,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,479.77 : 8,221.72 = 3,290.02 : x
  2. Step 2: Convert to fraction form
    5,479.77/8,221.72 = 3,290.02/x
  3. Step 3: Cross multiply
    5,479.77x = 8,221.72 × 3,290.02
  4. Step 4: Simplify right side
    5,479.77x = 27,049,623.23
  5. Step 5: Solve for x
    x = 27,049,623.23/5,479.77
  6. Step 6: Final answer
    x = 4,936.27

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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.