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Finding the Fourth Proportional to 2,635.53, 3,952.95 and 1,648.43

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Solution

The fourth proportional to 2,635.53, 3,952.95 and 1,648.43 is: 2,472.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,635.53 : 3,952.95 = 1,648.43 : x
  2. Step 2: Convert to fraction form
    2,635.53/3,952.95 = 1,648.43/x
  3. Step 3: Cross multiply
    2,635.53x = 3,952.95 × 1,648.43
  4. Step 4: Simplify right side
    2,635.53x = 6,516,141.60
  5. Step 5: Solve for x
    x = 6,516,141.60/2,635.53
  6. Step 6: Final answer
    x = 2,472.42

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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.