Home / 1,520.03-2,279.25-697.59

Finding the Fourth Proportional to 1,520.03, 2,279.25 and 697.59

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Solution

The fourth proportional to 1,520.03, 2,279.25 and 697.59 is: 1,046.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.03 : 2,279.25 = 697.59 : x
  2. Step 2: Convert to fraction form
    1,520.03/2,279.25 = 697.59/x
  3. Step 3: Cross multiply
    1,520.03x = 2,279.25 × 697.59
  4. Step 4: Simplify right side
    1,520.03x = 1,589,982.01
  5. Step 5: Solve for x
    x = 1,589,982.01/1,520.03
  6. Step 6: Final answer
    x = 1,046.02

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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.