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Finding the Fourth Proportional to 7,773.18, 11,653.29 and 3,872.22

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Solution

The fourth proportional to 7,773.18, 11,653.29 and 3,872.22 is: 5,805.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,773.18 : 11,653.29 = 3,872.22 : x
  2. Step 2: Convert to fraction form
    7,773.18/11,653.29 = 3,872.22/x
  3. Step 3: Cross multiply
    7,773.18x = 11,653.29 × 3,872.22
  4. Step 4: Simplify right side
    7,773.18x = 45,124,102.60
  5. Step 5: Solve for x
    x = 45,124,102.60/7,773.18
  6. Step 6: Final answer
    x = 5,805.10

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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.