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Finding the Fourth Proportional to 1,395.29, 2,093.49 and 625.25

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Solution

The fourth proportional to 1,395.29, 2,093.49 and 625.25 is: 938.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395.29 : 2,093.49 = 625.25 : x
  2. Step 2: Convert to fraction form
    1,395.29/2,093.49 = 625.25/x
  3. Step 3: Cross multiply
    1,395.29x = 2,093.49 × 625.25
  4. Step 4: Simplify right side
    1,395.29x = 1,308,954.62
  5. Step 5: Solve for x
    x = 1,308,954.62/1,395.29
  6. Step 6: Final answer
    x = 938.12

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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.