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Finding the Fourth Proportional to 2,757.66, 4,136.29 and 810.02

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Solution

The fourth proportional to 2,757.66, 4,136.29 and 810.02 is: 1,214.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,757.66 : 4,136.29 = 810.02 : x
  2. Step 2: Convert to fraction form
    2,757.66/4,136.29 = 810.02/x
  3. Step 3: Cross multiply
    2,757.66x = 4,136.29 × 810.02
  4. Step 4: Simplify right side
    2,757.66x = 3,350,454.92
  5. Step 5: Solve for x
    x = 3,350,454.92/2,757.66
  6. Step 6: Final answer
    x = 1,214.96

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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.