Home / 3,479.90-5,221.77-3,451.65

Finding the Fourth Proportional to 3,479.90, 5,221.77 and 3,451.65

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Solution

The fourth proportional to 3,479.90, 5,221.77 and 3,451.65 is: 5,179.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.90 : 5,221.77 = 3,451.65 : x
  2. Step 2: Convert to fraction form
    3,479.90/5,221.77 = 3,451.65/x
  3. Step 3: Cross multiply
    3,479.90x = 5,221.77 × 3,451.65
  4. Step 4: Simplify right side
    3,479.90x = 18,023,722.42
  5. Step 5: Solve for x
    x = 18,023,722.42/3,479.90
  6. Step 6: Final answer
    x = 5,179.39

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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.