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Finding the Fourth Proportional to 2,313.29, 3,467.76 and 851.34

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Solution

The fourth proportional to 2,313.29, 3,467.76 and 851.34 is: 1,276.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,313.29 : 3,467.76 = 851.34 : x
  2. Step 2: Convert to fraction form
    2,313.29/3,467.76 = 851.34/x
  3. Step 3: Cross multiply
    2,313.29x = 3,467.76 × 851.34
  4. Step 4: Simplify right side
    2,313.29x = 2,952,257.40
  5. Step 5: Solve for x
    x = 2,952,257.40/2,313.29
  6. Step 6: Final answer
    x = 1,276.21

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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.