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Finding the Fourth Proportional to 795.56, 1,191.42 and 637.48

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Solution

The fourth proportional to 795.56, 1,191.42 and 637.48 is: 954.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    795.56 : 1,191.42 = 637.48 : x
  2. Step 2: Convert to fraction form
    795.56/1,191.42 = 637.48/x
  3. Step 3: Cross multiply
    795.56x = 1,191.42 × 637.48
  4. Step 4: Simplify right side
    795.56x = 759,506.42
  5. Step 5: Solve for x
    x = 759,506.42/795.56
  6. Step 6: Final answer
    x = 954.68

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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.