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Finding the Fourth Proportional to 1,196.41, 1,651.03 and 730.66

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Solution

The fourth proportional to 1,196.41, 1,651.03 and 730.66 is: 1,008.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196.41 : 1,651.03 = 730.66 : x
  2. Step 2: Convert to fraction form
    1,196.41/1,651.03 = 730.66/x
  3. Step 3: Cross multiply
    1,196.41x = 1,651.03 × 730.66
  4. Step 4: Simplify right side
    1,196.41x = 1,206,341.58
  5. Step 5: Solve for x
    x = 1,206,341.58/1,196.41
  6. Step 6: Final answer
    x = 1,008.30

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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.