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Finding the Fourth Proportional to 2,395.67, 3,593.25 and 640.83

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Solution

The fourth proportional to 2,395.67, 3,593.25 and 640.83 is: 961.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,395.67 : 3,593.25 = 640.83 : x
  2. Step 2: Convert to fraction form
    2,395.67/3,593.25 = 640.83/x
  3. Step 3: Cross multiply
    2,395.67x = 3,593.25 × 640.83
  4. Step 4: Simplify right side
    2,395.67x = 2,302,662.40
  5. Step 5: Solve for x
    x = 2,302,662.40/2,395.67
  6. Step 6: Final answer
    x = 961.18

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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.