Home / 7,771.38-11,655.43-2,506.88

Finding the Fourth Proportional to 7,771.38, 11,655.43 and 2,506.88

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Solution

The fourth proportional to 7,771.38, 11,655.43 and 2,506.88 is: 3,759.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,771.38 : 11,655.43 = 2,506.88 : x
  2. Step 2: Convert to fraction form
    7,771.38/11,655.43 = 2,506.88/x
  3. Step 3: Cross multiply
    7,771.38x = 11,655.43 × 2,506.88
  4. Step 4: Simplify right side
    7,771.38x = 29,218,787.23
  5. Step 5: Solve for x
    x = 29,218,787.23/7,771.38
  6. Step 6: Final answer
    x = 3,759.80

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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.