Home / 3,290.14-4,539.09-2,171.65

Finding the Fourth Proportional to 3,290.14, 4,539.09 and 2,171.65

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Solution

The fourth proportional to 3,290.14, 4,539.09 and 2,171.65 is: 2,996.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,290.14 : 4,539.09 = 2,171.65 : x
  2. Step 2: Convert to fraction form
    3,290.14/4,539.09 = 2,171.65/x
  3. Step 3: Cross multiply
    3,290.14x = 4,539.09 × 2,171.65
  4. Step 4: Simplify right side
    3,290.14x = 9,857,314.80
  5. Step 5: Solve for x
    x = 9,857,314.80/3,290.14
  6. Step 6: Final answer
    x = 2,996.02

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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.