Home / 1,748.30-2,622.92-515.75

Finding the Fourth Proportional to 1,748.30, 2,622.92 and 515.75

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Solution

The fourth proportional to 1,748.30, 2,622.92 and 515.75 is: 773.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,748.30 : 2,622.92 = 515.75 : x
  2. Step 2: Convert to fraction form
    1,748.30/2,622.92 = 515.75/x
  3. Step 3: Cross multiply
    1,748.30x = 2,622.92 × 515.75
  4. Step 4: Simplify right side
    1,748.30x = 1,352,755.30
  5. Step 5: Solve for x
    x = 1,352,755.30/1,748.30
  6. Step 6: Final answer
    x = 773.76

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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.