Home / 3,212.12-4,818.95-1,020.85

Finding the Fourth Proportional to 3,212.12, 4,818.95 and 1,020.85

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Solution

The fourth proportional to 3,212.12, 4,818.95 and 1,020.85 is: 1,531.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,212.12 : 4,818.95 = 1,020.85 : x
  2. Step 2: Convert to fraction form
    3,212.12/4,818.95 = 1,020.85/x
  3. Step 3: Cross multiply
    3,212.12x = 4,818.95 × 1,020.85
  4. Step 4: Simplify right side
    3,212.12x = 4,919,426.03
  5. Step 5: Solve for x
    x = 4,919,426.03/3,212.12
  6. Step 6: Final answer
    x = 1,531.52

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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.