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Finding the Fourth Proportional to 1,817.35, 2,726.04 and 776.82

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Solution

The fourth proportional to 1,817.35, 2,726.04 and 776.82 is: 1,165.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,817.35 : 2,726.04 = 776.82 : x
  2. Step 2: Convert to fraction form
    1,817.35/2,726.04 = 776.82/x
  3. Step 3: Cross multiply
    1,817.35x = 2,726.04 × 776.82
  4. Step 4: Simplify right side
    1,817.35x = 2,117,628.76
  5. Step 5: Solve for x
    x = 2,117,628.76/1,817.35
  6. Step 6: Final answer
    x = 1,165.23

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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.