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Finding the Fourth Proportional to 2,817.54, 4,225.50 and 843.36

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Solution

The fourth proportional to 2,817.54, 4,225.50 and 843.36 is: 1,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,817.54 : 4,225.50 = 843.36 : x
  2. Step 2: Convert to fraction form
    2,817.54/4,225.50 = 843.36/x
  3. Step 3: Cross multiply
    2,817.54x = 4,225.50 × 843.36
  4. Step 4: Simplify right side
    2,817.54x = 3,563,617.68
  5. Step 5: Solve for x
    x = 3,563,617.68/2,817.54
  6. Step 6: Final answer
    x = 1,264.80

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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.