Home / 791.28-1,091.95-442.04

Finding the Fourth Proportional to 791.28, 1,091.95 and 442.04

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Solution

The fourth proportional to 791.28, 1,091.95 and 442.04 is: 610.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    791.28 : 1,091.95 = 442.04 : x
  2. Step 2: Convert to fraction form
    791.28/1,091.95 = 442.04/x
  3. Step 3: Cross multiply
    791.28x = 1,091.95 × 442.04
  4. Step 4: Simplify right side
    791.28x = 482,679.01
  5. Step 5: Solve for x
    x = 482,679.01/791.28
  6. Step 6: Final answer
    x = 610.00

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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.