Home / 3,186.79-4,397.30-1,789.27

Finding the Fourth Proportional to 3,186.79, 4,397.30 and 1,789.27

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Solution

The fourth proportional to 3,186.79, 4,397.30 and 1,789.27 is: 2,468.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,186.79 : 4,397.30 = 1,789.27 : x
  2. Step 2: Convert to fraction form
    3,186.79/4,397.30 = 1,789.27/x
  3. Step 3: Cross multiply
    3,186.79x = 4,397.30 × 1,789.27
  4. Step 4: Simplify right side
    3,186.79x = 7,867,948.02
  5. Step 5: Solve for x
    x = 7,867,948.02/3,186.79
  6. Step 6: Final answer
    x = 2,468.93

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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.