Home / 2,228.09-3,342.36-767.36

Finding the Fourth Proportional to 2,228.09, 3,342.36 and 767.36

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Solution

The fourth proportional to 2,228.09, 3,342.36 and 767.36 is: 1,151.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,228.09 : 3,342.36 = 767.36 : x
  2. Step 2: Convert to fraction form
    2,228.09/3,342.36 = 767.36/x
  3. Step 3: Cross multiply
    2,228.09x = 3,342.36 × 767.36
  4. Step 4: Simplify right side
    2,228.09x = 2,564,776.66
  5. Step 5: Solve for x
    x = 2,564,776.66/2,228.09
  6. Step 6: Final answer
    x = 1,151.11

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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.