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Finding the Fourth Proportional to 701.92, 969.36 and 696.16

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Solution

The fourth proportional to 701.92, 969.36 and 696.16 is: 961.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    701.92 : 969.36 = 696.16 : x
  2. Step 2: Convert to fraction form
    701.92/969.36 = 696.16/x
  3. Step 3: Cross multiply
    701.92x = 969.36 × 696.16
  4. Step 4: Simplify right side
    701.92x = 674,829.66
  5. Step 5: Solve for x
    x = 674,829.66/701.92
  6. Step 6: Final answer
    x = 961.41

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1.5x scale

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.