Home / 2,185.20-3,277.31-625.17

Finding the Fourth Proportional to 2,185.20, 3,277.31 and 625.17

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Solution

The fourth proportional to 2,185.20, 3,277.31 and 625.17 is: 937.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.20 : 3,277.31 = 625.17 : x
  2. Step 2: Convert to fraction form
    2,185.20/3,277.31 = 625.17/x
  3. Step 3: Cross multiply
    2,185.20x = 3,277.31 × 625.17
  4. Step 4: Simplify right side
    2,185.20x = 2,048,872.77
  5. Step 5: Solve for x
    x = 2,048,872.77/2,185.20
  6. Step 6: Final answer
    x = 937.61

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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.