Home / 3,755.13-5,626.53-1,288.62

Finding the Fourth Proportional to 3,755.13, 5,626.53 and 1,288.62

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Solution

The fourth proportional to 3,755.13, 5,626.53 and 1,288.62 is: 1,930.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,755.13 : 5,626.53 = 1,288.62 : x
  2. Step 2: Convert to fraction form
    3,755.13/5,626.53 = 1,288.62/x
  3. Step 3: Cross multiply
    3,755.13x = 5,626.53 × 1,288.62
  4. Step 4: Simplify right side
    3,755.13x = 7,250,459.09
  5. Step 5: Solve for x
    x = 7,250,459.09/3,755.13
  6. Step 6: Final answer
    x = 1,930.81

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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.