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Finding the Fourth Proportional to 651.53, 982.07 and 613.89

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Solution

The fourth proportional to 651.53, 982.07 and 613.89 is: 925.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.53 : 982.07 = 613.89 : x
  2. Step 2: Convert to fraction form
    651.53/982.07 = 613.89/x
  3. Step 3: Cross multiply
    651.53x = 982.07 × 613.89
  4. Step 4: Simplify right side
    651.53x = 602,879.88
  5. Step 5: Solve for x
    x = 602,879.88/651.53
  6. Step 6: Final answer
    x = 925.34

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.