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Finding the Fourth Proportional to 1,584.22, 2,186.03 and 875.97

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Solution

The fourth proportional to 1,584.22, 2,186.03 and 875.97 is: 1,208.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,584.22 : 2,186.03 = 875.97 : x
  2. Step 2: Convert to fraction form
    1,584.22/2,186.03 = 875.97/x
  3. Step 3: Cross multiply
    1,584.22x = 2,186.03 × 875.97
  4. Step 4: Simplify right side
    1,584.22x = 1,914,898.89
  5. Step 5: Solve for x
    x = 1,914,898.89/1,584.22
  6. Step 6: Final answer
    x = 1,208.73

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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.