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Finding the Fourth Proportional to 651.02, 975.62 and 513.44

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Solution

The fourth proportional to 651.02, 975.62 and 513.44 is: 769.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.02 : 975.62 = 513.44 : x
  2. Step 2: Convert to fraction form
    651.02/975.62 = 513.44/x
  3. Step 3: Cross multiply
    651.02x = 975.62 × 513.44
  4. Step 4: Simplify right side
    651.02x = 500,922.33
  5. Step 5: Solve for x
    x = 500,922.33/651.02
  6. Step 6: Final answer
    x = 769.44

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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.