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Finding the Fourth Proportional to 2,185.32, 3,277.48 and 625.30

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Solution

The fourth proportional to 2,185.32, 3,277.48 and 625.30 is: 937.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.32 : 3,277.48 = 625.30 : x
  2. Step 2: Convert to fraction form
    2,185.32/3,277.48 = 625.30/x
  3. Step 3: Cross multiply
    2,185.32x = 3,277.48 × 625.30
  4. Step 4: Simplify right side
    2,185.32x = 2,049,408.24
  5. Step 5: Solve for x
    x = 2,049,408.24/2,185.32
  6. Step 6: Final answer
    x = 937.81

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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.