Home / 2,326.20-3,489.30-2,212.80

Finding the Fourth Proportional to 2,326.20, 3,489.30 and 2,212.80

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Solution

The fourth proportional to 2,326.20, 3,489.30 and 2,212.80 is: 3,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,326.20 : 3,489.30 = 2,212.80 : x
  2. Step 2: Convert to fraction form
    2,326.20/3,489.30 = 2,212.80/x
  3. Step 3: Cross multiply
    2,326.20x = 3,489.30 × 2,212.80
  4. Step 4: Simplify right side
    2,326.20x = 7,721,123.04
  5. Step 5: Solve for x
    x = 7,721,123.04/2,326.20
  6. Step 6: Final answer
    x = 3,319.20

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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.