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Finding the Fourth Proportional to 2,050.11, 3,075.17 and 818.64

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Solution

The fourth proportional to 2,050.11, 3,075.17 and 818.64 is: 1,227.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,050.11 : 3,075.17 = 818.64 : x
  2. Step 2: Convert to fraction form
    2,050.11/3,075.17 = 818.64/x
  3. Step 3: Cross multiply
    2,050.11x = 3,075.17 × 818.64
  4. Step 4: Simplify right side
    2,050.11x = 2,517,453.08
  5. Step 5: Solve for x
    x = 2,517,453.08/2,050.11
  6. Step 6: Final answer
    x = 1,227.96

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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.