Home / 3,187.14-4,398.24-1,789.89

Finding the Fourth Proportional to 3,187.14, 4,398.24 and 1,789.89

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Solution

The fourth proportional to 3,187.14, 4,398.24 and 1,789.89 is: 2,470.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,187.14 : 4,398.24 = 1,789.89 : x
  2. Step 2: Convert to fraction form
    3,187.14/4,398.24 = 1,789.89/x
  3. Step 3: Cross multiply
    3,187.14x = 4,398.24 × 1,789.89
  4. Step 4: Simplify right side
    3,187.14x = 7,872,365.79
  5. Step 5: Solve for x
    x = 7,872,365.79/3,187.14
  6. Step 6: Final answer
    x = 2,470.04

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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.