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Finding the Fourth Proportional to 1,326.33, 1,830.38 and 736.87

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Solution

The fourth proportional to 1,326.33, 1,830.38 and 736.87 is: 1,016.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326.33 : 1,830.38 = 736.87 : x
  2. Step 2: Convert to fraction form
    1,326.33/1,830.38 = 736.87/x
  3. Step 3: Cross multiply
    1,326.33x = 1,830.38 × 736.87
  4. Step 4: Simplify right side
    1,326.33x = 1,348,752.11
  5. Step 5: Solve for x
    x = 1,348,752.11/1,326.33
  6. Step 6: Final answer
    x = 1,016.91

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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.