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Finding the Fourth Proportional to 1,192.87, 1,646.16 and 695.85

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Solution

The fourth proportional to 1,192.87, 1,646.16 and 695.85 is: 960.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.87 : 1,646.16 = 695.85 : x
  2. Step 2: Convert to fraction form
    1,192.87/1,646.16 = 695.85/x
  3. Step 3: Cross multiply
    1,192.87x = 1,646.16 × 695.85
  4. Step 4: Simplify right side
    1,192.87x = 1,145,480.44
  5. Step 5: Solve for x
    x = 1,145,480.44/1,192.87
  6. Step 6: Final answer
    x = 960.27

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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.