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Finding the Fourth Proportional to 953.97, 1,431.51 and 377.25

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Solution

The fourth proportional to 953.97, 1,431.51 and 377.25 is: 566.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    953.97 : 1,431.51 = 377.25 : x
  2. Step 2: Convert to fraction form
    953.97/1,431.51 = 377.25/x
  3. Step 3: Cross multiply
    953.97x = 1,431.51 × 377.25
  4. Step 4: Simplify right side
    953.97x = 540,037.15
  5. Step 5: Solve for x
    x = 540,037.15/953.97
  6. Step 6: Final answer
    x = 566.09

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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.