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Finding the Fourth Proportional to 7,777.74, 11,663.16 and 2,229.82

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Solution

The fourth proportional to 7,777.74, 11,663.16 and 2,229.82 is: 3,343.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,777.74 : 11,663.16 = 2,229.82 : x
  2. Step 2: Convert to fraction form
    7,777.74/11,663.16 = 2,229.82/x
  3. Step 3: Cross multiply
    7,777.74x = 11,663.16 × 2,229.82
  4. Step 4: Simplify right side
    7,777.74x = 26,006,747.43
  5. Step 5: Solve for x
    x = 26,006,747.43/7,777.74
  6. Step 6: Final answer
    x = 3,343.74

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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.