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Finding the Fourth Proportional to 1,963.50, 2,949.34 and 1,655.94

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Solution

The fourth proportional to 1,963.50, 2,949.34 and 1,655.94 is: 2,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,963.50 : 2,949.34 = 1,655.94 : x
  2. Step 2: Convert to fraction form
    1,963.50/2,949.34 = 1,655.94/x
  3. Step 3: Cross multiply
    1,963.50x = 2,949.34 × 1,655.94
  4. Step 4: Simplify right side
    1,963.50x = 4,883,930.08
  5. Step 5: Solve for x
    x = 4,883,930.08/1,963.50
  6. Step 6: Final answer
    x = 2,487.36

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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.