Home / 2,549.80-3,825.84-1,089.28

Finding the Fourth Proportional to 2,549.80, 3,825.84 and 1,089.28

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Solution

The fourth proportional to 2,549.80, 3,825.84 and 1,089.28 is: 1,634.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,549.80 : 3,825.84 = 1,089.28 : x
  2. Step 2: Convert to fraction form
    2,549.80/3,825.84 = 1,089.28/x
  3. Step 3: Cross multiply
    2,549.80x = 3,825.84 × 1,089.28
  4. Step 4: Simplify right side
    2,549.80x = 4,167,411.00
  5. Step 5: Solve for x
    x = 4,167,411.00/2,549.80
  6. Step 6: Final answer
    x = 1,634.41

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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.