Home / 1,817.96-2,726.27-778.03

Finding the Fourth Proportional to 1,817.96, 2,726.27 and 778.03

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Solution

The fourth proportional to 1,817.96, 2,726.27 and 778.03 is: 1,166.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.96 : 2,726.27 = 778.03 : x
  2. Step 2: Convert to fraction form
    1,817.96/2,726.27 = 778.03/x
  3. Step 3: Cross multiply
    1,817.96x = 2,726.27 × 778.03
  4. Step 4: Simplify right side
    1,817.96x = 2,121,116.44
  5. Step 5: Solve for x
    x = 2,121,116.44/1,817.96
  6. Step 6: Final answer
    x = 1,166.76

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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.