Home / 3,075.40-4,243.89-1,896.04

Finding the Fourth Proportional to 3,075.40, 4,243.89 and 1,896.04

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Solution

The fourth proportional to 3,075.40, 4,243.89 and 1,896.04 is: 2,616.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,075.40 : 4,243.89 = 1,896.04 : x
  2. Step 2: Convert to fraction form
    3,075.40/4,243.89 = 1,896.04/x
  3. Step 3: Cross multiply
    3,075.40x = 4,243.89 × 1,896.04
  4. Step 4: Simplify right side
    3,075.40x = 8,046,585.20
  5. Step 5: Solve for x
    x = 8,046,585.20/3,075.40
  6. Step 6: Final answer
    x = 2,616.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.