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Finding the Fourth Proportional to 1,192.52, 1,646.52 and 773.08

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Solution

The fourth proportional to 1,192.52, 1,646.52 and 773.08 is: 1,067.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,192.52 : 1,646.52 = 773.08 : x
  2. Step 2: Convert to fraction form
    1,192.52/1,646.52 = 773.08/x
  3. Step 3: Cross multiply
    1,192.52x = 1,646.52 × 773.08
  4. Step 4: Simplify right side
    1,192.52x = 1,272,891.68
  5. Step 5: Solve for x
    x = 1,272,891.68/1,192.52
  6. Step 6: Final answer
    x = 1,067.40

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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.