Home / 7,766.76-11,651.58-2,220.12

Finding the Fourth Proportional to 7,766.76, 11,651.58 and 2,220.12

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Solution

The fourth proportional to 7,766.76, 11,651.58 and 2,220.12 is: 3,330.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,766.76 : 11,651.58 = 2,220.12 : x
  2. Step 2: Convert to fraction form
    7,766.76/11,651.58 = 2,220.12/x
  3. Step 3: Cross multiply
    7,766.76x = 11,651.58 × 2,220.12
  4. Step 4: Simplify right side
    7,766.76x = 25,867,905.79
  5. Step 5: Solve for x
    x = 25,867,905.79/7,766.76
  6. Step 6: Final answer
    x = 3,330.59

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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.