Home / 2,755.30-4,132.88-675.29

Finding the Fourth Proportional to 2,755.30, 4,132.88 and 675.29

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Solution

The fourth proportional to 2,755.30, 4,132.88 and 675.29 is: 1,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,755.30 : 4,132.88 = 675.29 : x
  2. Step 2: Convert to fraction form
    2,755.30/4,132.88 = 675.29/x
  3. Step 3: Cross multiply
    2,755.30x = 4,132.88 × 675.29
  4. Step 4: Simplify right side
    2,755.30x = 2,790,871.87
  5. Step 5: Solve for x
    x = 2,790,871.87/2,755.30
  6. Step 6: Final answer
    x = 1,012.91

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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.