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Finding the Fourth Proportional to 1,162.52, 1,604.36 and 696.84

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Solution

The fourth proportional to 1,162.52, 1,604.36 and 696.84 is: 961.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,162.52 : 1,604.36 = 696.84 : x
  2. Step 2: Convert to fraction form
    1,162.52/1,604.36 = 696.84/x
  3. Step 3: Cross multiply
    1,162.52x = 1,604.36 × 696.84
  4. Step 4: Simplify right side
    1,162.52x = 1,117,982.22
  5. Step 5: Solve for x
    x = 1,117,982.22/1,162.52
  6. Step 6: Final answer
    x = 961.69

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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.