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Finding the Fourth Proportional to 953.54, 1,314.97 and 743.64

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Solution

The fourth proportional to 953.54, 1,314.97 and 743.64 is: 1,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.54 : 1,314.97 = 743.64 : x
  2. Step 2: Convert to fraction form
    953.54/1,314.97 = 743.64/x
  3. Step 3: Cross multiply
    953.54x = 1,314.97 × 743.64
  4. Step 4: Simplify right side
    953.54x = 977,865.15
  5. Step 5: Solve for x
    x = 977,865.15/953.54
  6. Step 6: Final answer
    x = 1,025.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.