Home / 3,290.22-4,539.78-1,963.71

Finding the Fourth Proportional to 3,290.22, 4,539.78 and 1,963.71

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Solution

The fourth proportional to 3,290.22, 4,539.78 and 1,963.71 is: 2,709.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.22 : 4,539.78 = 1,963.71 : x
  2. Step 2: Convert to fraction form
    3,290.22/4,539.78 = 1,963.71/x
  3. Step 3: Cross multiply
    3,290.22x = 4,539.78 × 1,963.71
  4. Step 4: Simplify right side
    3,290.22x = 8,914,811.38
  5. Step 5: Solve for x
    x = 8,914,811.38/3,290.22
  6. Step 6: Final answer
    x = 2,709.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.