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Finding the Fourth Proportional to 2,572.88, 3,859.32 and 625.08

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Solution

The fourth proportional to 2,572.88, 3,859.32 and 625.08 is: 937.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,572.88 : 3,859.32 = 625.08 : x
  2. Step 2: Convert to fraction form
    2,572.88/3,859.32 = 625.08/x
  3. Step 3: Cross multiply
    2,572.88x = 3,859.32 × 625.08
  4. Step 4: Simplify right side
    2,572.88x = 2,412,383.75
  5. Step 5: Solve for x
    x = 2,412,383.75/2,572.88
  6. Step 6: Final answer
    x = 937.62

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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.