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Finding the Fourth Proportional to 1,762.62, 2,644 and 608.38

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Solution

The fourth proportional to 1,762.62, 2,644 and 608.38 is: 912.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,762.62 : 2,644 = 608.38 : x
  2. Step 2: Convert to fraction form
    1,762.62/2,644 = 608.38/x
  3. Step 3: Cross multiply
    1,762.62x = 2,644 × 608.38
  4. Step 4: Simplify right side
    1,762.62x = 1,608,556.72
  5. Step 5: Solve for x
    x = 1,608,556.72/1,762.62
  6. Step 6: Final answer
    x = 912.59

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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.