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Finding the Fourth Proportional to 736.06, 1,098.84 and 672.88

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Solution

The fourth proportional to 736.06, 1,098.84 and 672.88 is: 1,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    736.06 : 1,098.84 = 672.88 : x
  2. Step 2: Convert to fraction form
    736.06/1,098.84 = 672.88/x
  3. Step 3: Cross multiply
    736.06x = 1,098.84 × 672.88
  4. Step 4: Simplify right side
    736.06x = 739,387.46
  5. Step 5: Solve for x
    x = 739,387.46/736.06
  6. Step 6: Final answer
    x = 1,004.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.