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Finding the Fourth Proportional to 1,679.00, 2,316.93 and 932.97

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Solution

The fourth proportional to 1,679.00, 2,316.93 and 932.97 is: 1,287.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679.00 : 2,316.93 = 932.97 : x
  2. Step 2: Convert to fraction form
    1,679.00/2,316.93 = 932.97/x
  3. Step 3: Cross multiply
    1,679.00x = 2,316.93 × 932.97
  4. Step 4: Simplify right side
    1,679.00x = 2,161,620.96
  5. Step 5: Solve for x
    x = 2,161,620.96/1,679.00
  6. Step 6: Final answer
    x = 1,287.44

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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.