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Finding the Fourth Proportional to 2,573.19, 3,859.79 and 625.38

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Solution

The fourth proportional to 2,573.19, 3,859.79 and 625.38 is: 938.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,573.19 : 3,859.79 = 625.38 : x
  2. Step 2: Convert to fraction form
    2,573.19/3,859.79 = 625.38/x
  3. Step 3: Cross multiply
    2,573.19x = 3,859.79 × 625.38
  4. Step 4: Simplify right side
    2,573.19x = 2,413,832.34
  5. Step 5: Solve for x
    x = 2,413,832.34/2,573.19
  6. Step 6: Final answer
    x = 938.07

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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.