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Finding the Fourth Proportional to 852.62, 1,279.74 and 701.96

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Solution

The fourth proportional to 852.62, 1,279.74 and 701.96 is: 1,053.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    852.62 : 1,279.74 = 701.96 : x
  2. Step 2: Convert to fraction form
    852.62/1,279.74 = 701.96/x
  3. Step 3: Cross multiply
    852.62x = 1,279.74 × 701.96
  4. Step 4: Simplify right side
    852.62x = 898,326.29
  5. Step 5: Solve for x
    x = 898,326.29/852.62
  6. Step 6: Final answer
    x = 1,053.61

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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.