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Finding the Fourth Proportional to 1,336.38, 1,844.21 and 746.92

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Solution

The fourth proportional to 1,336.38, 1,844.21 and 746.92 is: 1,030.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,336.38 : 1,844.21 = 746.92 : x
  2. Step 2: Convert to fraction form
    1,336.38/1,844.21 = 746.92/x
  3. Step 3: Cross multiply
    1,336.38x = 1,844.21 × 746.92
  4. Step 4: Simplify right side
    1,336.38x = 1,377,468.99
  5. Step 5: Solve for x
    x = 1,377,468.99/1,336.38
  6. Step 6: Final answer
    x = 1,030.74

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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.