Home / 2,228.21-3,342.54-767.17

Finding the Fourth Proportional to 2,228.21, 3,342.54 and 767.17

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Solution

The fourth proportional to 2,228.21, 3,342.54 and 767.17 is: 1,150.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.21 : 3,342.54 = 767.17 : x
  2. Step 2: Convert to fraction form
    2,228.21/3,342.54 = 767.17/x
  3. Step 3: Cross multiply
    2,228.21x = 3,342.54 × 767.17
  4. Step 4: Simplify right side
    2,228.21x = 2,564,296.41
  5. Step 5: Solve for x
    x = 2,564,296.41/2,228.21
  6. Step 6: Final answer
    x = 1,150.83

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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.