Home / 4,220.96-6,326.61-2,640.39

Finding the Fourth Proportional to 4,220.96, 6,326.61 and 2,640.39

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Solution

The fourth proportional to 4,220.96, 6,326.61 and 2,640.39 is: 3,957.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,220.96 : 6,326.61 = 2,640.39 : x
  2. Step 2: Convert to fraction form
    4,220.96/6,326.61 = 2,640.39/x
  3. Step 3: Cross multiply
    4,220.96x = 6,326.61 × 2,640.39
  4. Step 4: Simplify right side
    4,220.96x = 16,704,717.78
  5. Step 5: Solve for x
    x = 16,704,717.78/4,220.96
  6. Step 6: Final answer
    x = 3,957.56

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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.