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Finding the Fourth Proportional to 1,812.44, 2,718.66 and 514.04

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Solution

The fourth proportional to 1,812.44, 2,718.66 and 514.04 is: 771.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.44 : 2,718.66 = 514.04 : x
  2. Step 2: Convert to fraction form
    1,812.44/2,718.66 = 514.04/x
  3. Step 3: Cross multiply
    1,812.44x = 2,718.66 × 514.04
  4. Step 4: Simplify right side
    1,812.44x = 1,397,499.99
  5. Step 5: Solve for x
    x = 1,397,499.99/1,812.44
  6. Step 6: Final answer
    x = 771.06

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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.