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Finding the Fourth Proportional to 3,162.76, 4,744.11 and 1,082.74

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Solution

The fourth proportional to 3,162.76, 4,744.11 and 1,082.74 is: 1,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,162.76 : 4,744.11 = 1,082.74 : x
  2. Step 2: Convert to fraction form
    3,162.76/4,744.11 = 1,082.74/x
  3. Step 3: Cross multiply
    3,162.76x = 4,744.11 × 1,082.74
  4. Step 4: Simplify right side
    3,162.76x = 5,136,637.66
  5. Step 5: Solve for x
    x = 5,136,637.66/3,162.76
  6. Step 6: Final answer
    x = 1,624.10

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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.