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Finding the Fourth Proportional to 2,185.50, 3,278.08 and 952.58

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Solution

The fourth proportional to 2,185.50, 3,278.08 and 952.58 is: 1,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185.50 : 3,278.08 = 952.58 : x
  2. Step 2: Convert to fraction form
    2,185.50/3,278.08 = 952.58/x
  3. Step 3: Cross multiply
    2,185.50x = 3,278.08 × 952.58
  4. Step 4: Simplify right side
    2,185.50x = 3,122,633.45
  5. Step 5: Solve for x
    x = 3,122,633.45/2,185.50
  6. Step 6: Final answer
    x = 1,428.80

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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.