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Finding the Fourth Proportional to 2,914.33, 4,371.65 and 834.64

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Solution

The fourth proportional to 2,914.33, 4,371.65 and 834.64 is: 1,252.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,914.33 : 4,371.65 = 834.64 : x
  2. Step 2: Convert to fraction form
    2,914.33/4,371.65 = 834.64/x
  3. Step 3: Cross multiply
    2,914.33x = 4,371.65 × 834.64
  4. Step 4: Simplify right side
    2,914.33x = 3,648,753.96
  5. Step 5: Solve for x
    x = 3,648,753.96/2,914.33
  6. Step 6: Final answer
    x = 1,252.00

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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.