Home / 3,212.12-4,818.72-1,020.84

Finding the Fourth Proportional to 3,212.12, 4,818.72 and 1,020.84

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Solution

The fourth proportional to 3,212.12, 4,818.72 and 1,020.84 is: 1,531.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.12 : 4,818.72 = 1,020.84 : x
  2. Step 2: Convert to fraction form
    3,212.12/4,818.72 = 1,020.84/x
  3. Step 3: Cross multiply
    3,212.12x = 4,818.72 × 1,020.84
  4. Step 4: Simplify right side
    3,212.12x = 4,919,142.12
  5. Step 5: Solve for x
    x = 4,919,142.12/3,212.12
  6. Step 6: Final answer
    x = 1,531.43

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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.