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Finding the Fourth Proportional to 1,347.82, 1,859.95 and 758.41

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Solution

The fourth proportional to 1,347.82, 1,859.95 and 758.41 is: 1,046.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347.82 : 1,859.95 = 758.41 : x
  2. Step 2: Convert to fraction form
    1,347.82/1,859.95 = 758.41/x
  3. Step 3: Cross multiply
    1,347.82x = 1,859.95 × 758.41
  4. Step 4: Simplify right side
    1,347.82x = 1,410,604.68
  5. Step 5: Solve for x
    x = 1,410,604.68/1,347.82
  6. Step 6: Final answer
    x = 1,046.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.