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Finding the Fourth Proportional to 1,166.22, 1,748.76 and 679.44

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Solution

The fourth proportional to 1,166.22, 1,748.76 and 679.44 is: 1,018.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,166.22 : 1,748.76 = 679.44 : x
  2. Step 2: Convert to fraction form
    1,166.22/1,748.76 = 679.44/x
  3. Step 3: Cross multiply
    1,166.22x = 1,748.76 × 679.44
  4. Step 4: Simplify right side
    1,166.22x = 1,188,177.49
  5. Step 5: Solve for x
    x = 1,188,177.49/1,166.22
  6. Step 6: Final answer
    x = 1,018.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.