Home / 1,817.23-2,726.30-518.69

Finding the Fourth Proportional to 1,817.23, 2,726.30 and 518.69

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Solution

The fourth proportional to 1,817.23, 2,726.30 and 518.69 is: 778.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.23 : 2,726.30 = 518.69 : x
  2. Step 2: Convert to fraction form
    1,817.23/2,726.30 = 518.69/x
  3. Step 3: Cross multiply
    1,817.23x = 2,726.30 × 518.69
  4. Step 4: Simplify right side
    1,817.23x = 1,414,104.55
  5. Step 5: Solve for x
    x = 1,414,104.55/1,817.23
  6. Step 6: Final answer
    x = 778.16

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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.