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Finding the Fourth Proportional to 680.08, 937.20 and 672.52

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Solution

The fourth proportional to 680.08, 937.20 and 672.52 is: 926.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    680.08 : 937.20 = 672.52 : x
  2. Step 2: Convert to fraction form
    680.08/937.20 = 672.52/x
  3. Step 3: Cross multiply
    680.08x = 937.20 × 672.52
  4. Step 4: Simplify right side
    680.08x = 630,285.74
  5. Step 5: Solve for x
    x = 630,285.74/680.08
  6. Step 6: Final answer
    x = 926.78

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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.