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Finding the Fourth Proportional to 796.07, 1,187.71 and 708.36

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Solution

The fourth proportional to 796.07, 1,187.71 and 708.36 is: 1,056.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    796.07 : 1,187.71 = 708.36 : x
  2. Step 2: Convert to fraction form
    796.07/1,187.71 = 708.36/x
  3. Step 3: Cross multiply
    796.07x = 1,187.71 × 708.36
  4. Step 4: Simplify right side
    796.07x = 841,326.26
  5. Step 5: Solve for x
    x = 841,326.26/796.07
  6. Step 6: Final answer
    x = 1,056.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.