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Finding the Fourth Proportional to 3,082.38, 4,623.56 and 773.88

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Solution

The fourth proportional to 3,082.38, 4,623.56 and 773.88 is: 1,160.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,082.38 : 4,623.56 = 773.88 : x
  2. Step 2: Convert to fraction form
    3,082.38/4,623.56 = 773.88/x
  3. Step 3: Cross multiply
    3,082.38x = 4,623.56 × 773.88
  4. Step 4: Simplify right side
    3,082.38x = 3,578,080.61
  5. Step 5: Solve for x
    x = 3,578,080.61/3,082.38
  6. Step 6: Final answer
    x = 1,160.82

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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.