Home / 2,229.36-3,075-1,443.84

Finding the Fourth Proportional to 2,229.36, 3,075 and 1,443.84

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Solution

The fourth proportional to 2,229.36, 3,075 and 1,443.84 is: 1,991.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,229.36 : 3,075 = 1,443.84 : x
  2. Step 2: Convert to fraction form
    2,229.36/3,075 = 1,443.84/x
  3. Step 3: Cross multiply
    2,229.36x = 3,075 × 1,443.84
  4. Step 4: Simplify right side
    2,229.36x = 4,439,808
  5. Step 5: Solve for x
    x = 4,439,808/2,229.36
  6. Step 6: Final answer
    x = 1,991.52

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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.