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Finding the Fourth Proportional to 3,382.80, 5,075.10 and 1,302.81

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Solution

The fourth proportional to 3,382.80, 5,075.10 and 1,302.81 is: 1,954.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,382.80 : 5,075.10 = 1,302.81 : x
  2. Step 2: Convert to fraction form
    3,382.80/5,075.10 = 1,302.81/x
  3. Step 3: Cross multiply
    3,382.80x = 5,075.10 × 1,302.81
  4. Step 4: Simplify right side
    3,382.80x = 6,611,891.03
  5. Step 5: Solve for x
    x = 6,611,891.03/3,382.80
  6. Step 6: Final answer
    x = 1,954.56

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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.