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Finding the Fourth Proportional to 791.99, 1,092.99 and 437.91

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Solution

The fourth proportional to 791.99, 1,092.99 and 437.91 is: 604.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.99 : 1,092.99 = 437.91 : x
  2. Step 2: Convert to fraction form
    791.99/1,092.99 = 437.91/x
  3. Step 3: Cross multiply
    791.99x = 1,092.99 × 437.91
  4. Step 4: Simplify right side
    791.99x = 478,631.25
  5. Step 5: Solve for x
    x = 478,631.25/791.99
  6. Step 6: Final answer
    x = 604.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.