Home / 1,190.25-1,786.10-506.25

Finding the Fourth Proportional to 1,190.25, 1,786.10 and 506.25

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Solution

The fourth proportional to 1,190.25, 1,786.10 and 506.25 is: 759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190.25 : 1,786.10 = 506.25 : x
  2. Step 2: Convert to fraction form
    1,190.25/1,786.10 = 506.25/x
  3. Step 3: Cross multiply
    1,190.25x = 1,786.10 × 506.25
  4. Step 4: Simplify right side
    1,190.25x = 904,210.59
  5. Step 5: Solve for x
    x = 904,210.59/1,190.25
  6. Step 6: Final answer
    x = 759.68

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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.