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Finding the Fourth Proportional to 956.34, 1,434.51 and 633.96

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Solution

The fourth proportional to 956.34, 1,434.51 and 633.96 is: 950.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    956.34 : 1,434.51 = 633.96 : x
  2. Step 2: Convert to fraction form
    956.34/1,434.51 = 633.96/x
  3. Step 3: Cross multiply
    956.34x = 1,434.51 × 633.96
  4. Step 4: Simplify right side
    956.34x = 909,421.96
  5. Step 5: Solve for x
    x = 909,421.96/956.34
  6. Step 6: Final answer
    x = 950.94

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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.