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Finding the Fourth Proportional to 637.22, 954.75 and 613.22

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Solution

The fourth proportional to 637.22, 954.75 and 613.22 is: 918.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.22 : 954.75 = 613.22 : x
  2. Step 2: Convert to fraction form
    637.22/954.75 = 613.22/x
  3. Step 3: Cross multiply
    637.22x = 954.75 × 613.22
  4. Step 4: Simplify right side
    637.22x = 585,467.02
  5. Step 5: Solve for x
    x = 585,467.02/637.22
  6. Step 6: Final answer
    x = 918.79

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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.