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Finding the Fourth Proportional to 1,364.31, 2,046.87 and 634.77

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Solution

The fourth proportional to 1,364.31, 2,046.87 and 634.77 is: 952.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,364.31 : 2,046.87 = 634.77 : x
  2. Step 2: Convert to fraction form
    1,364.31/2,046.87 = 634.77/x
  3. Step 3: Cross multiply
    1,364.31x = 2,046.87 × 634.77
  4. Step 4: Simplify right side
    1,364.31x = 1,299,291.67
  5. Step 5: Solve for x
    x = 1,299,291.67/1,364.31
  6. Step 6: Final answer
    x = 952.34

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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.