Home / 3,479.35-5,218.79-1,630.87

Finding the Fourth Proportional to 3,479.35, 5,218.79 and 1,630.87

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Solution

The fourth proportional to 3,479.35, 5,218.79 and 1,630.87 is: 2,446.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.35 : 5,218.79 = 1,630.87 : x
  2. Step 2: Convert to fraction form
    3,479.35/5,218.79 = 1,630.87/x
  3. Step 3: Cross multiply
    3,479.35x = 5,218.79 × 1,630.87
  4. Step 4: Simplify right side
    3,479.35x = 8,511,172.94
  5. Step 5: Solve for x
    x = 8,511,172.94/3,479.35
  6. Step 6: Final answer
    x = 2,446.20

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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.