Home / 7,609.55-11,403.38-3,220.97

Finding the Fourth Proportional to 7,609.55, 11,403.38 and 3,220.97

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Solution

The fourth proportional to 7,609.55, 11,403.38 and 3,220.97 is: 4,826.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,609.55 : 11,403.38 = 3,220.97 : x
  2. Step 2: Convert to fraction form
    7,609.55/11,403.38 = 3,220.97/x
  3. Step 3: Cross multiply
    7,609.55x = 11,403.38 × 3,220.97
  4. Step 4: Simplify right side
    7,609.55x = 36,729,895.91
  5. Step 5: Solve for x
    x = 36,729,895.91/7,609.55
  6. Step 6: Final answer
    x = 4,826.82

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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.