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Finding the Fourth Proportional to 3,768.76, 5,653.26 and 1,171.62

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Solution

The fourth proportional to 3,768.76, 5,653.26 and 1,171.62 is: 1,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,768.76 : 5,653.26 = 1,171.62 : x
  2. Step 2: Convert to fraction form
    3,768.76/5,653.26 = 1,171.62/x
  3. Step 3: Cross multiply
    3,768.76x = 5,653.26 × 1,171.62
  4. Step 4: Simplify right side
    3,768.76x = 6,623,472.48
  5. Step 5: Solve for x
    x = 6,623,472.48/3,768.76
  6. Step 6: Final answer
    x = 1,757.47

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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.