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Finding the Fourth Proportional to 2,236.10, 3,354.19 and 775.29

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Solution

The fourth proportional to 2,236.10, 3,354.19 and 775.29 is: 1,162.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,236.10 : 3,354.19 = 775.29 : x
  2. Step 2: Convert to fraction form
    2,236.10/3,354.19 = 775.29/x
  3. Step 3: Cross multiply
    2,236.10x = 3,354.19 × 775.29
  4. Step 4: Simplify right side
    2,236.10x = 2,600,468.03
  5. Step 5: Solve for x
    x = 2,600,468.03/2,236.10
  6. Step 6: Final answer
    x = 1,162.95

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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.