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Finding the Fourth Proportional to 2,827.96, 4,241.94 and 775.96

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Solution

The fourth proportional to 2,827.96, 4,241.94 and 775.96 is: 1,163.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,827.96 : 4,241.94 = 775.96 : x
  2. Step 2: Convert to fraction form
    2,827.96/4,241.94 = 775.96/x
  3. Step 3: Cross multiply
    2,827.96x = 4,241.94 × 775.96
  4. Step 4: Simplify right side
    2,827.96x = 3,291,575.76
  5. Step 5: Solve for x
    x = 3,291,575.76/2,827.96
  6. Step 6: Final answer
    x = 1,163.94

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1.5x scale

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.