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Finding the Fourth Proportional to 925.96, 1,277.71 and 571.83

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Solution

The fourth proportional to 925.96, 1,277.71 and 571.83 is: 789.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    925.96 : 1,277.71 = 571.83 : x
  2. Step 2: Convert to fraction form
    925.96/1,277.71 = 571.83/x
  3. Step 3: Cross multiply
    925.96x = 1,277.71 × 571.83
  4. Step 4: Simplify right side
    925.96x = 730,632.91
  5. Step 5: Solve for x
    x = 730,632.91/925.96
  6. Step 6: Final answer
    x = 789.05

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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.