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Finding the Fourth Proportional to 1,558.68, 2,335.96 and 633.73

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Solution

The fourth proportional to 1,558.68, 2,335.96 and 633.73 is: 949.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.68 : 2,335.96 = 633.73 : x
  2. Step 2: Convert to fraction form
    1,558.68/2,335.96 = 633.73/x
  3. Step 3: Cross multiply
    1,558.68x = 2,335.96 × 633.73
  4. Step 4: Simplify right side
    1,558.68x = 1,480,367.93
  5. Step 5: Solve for x
    x = 1,480,367.93/1,558.68
  6. Step 6: Final answer
    x = 949.76

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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.