Home / 2,789.25-3,849.21-1,670.23

Finding the Fourth Proportional to 2,789.25, 3,849.21 and 1,670.23

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Solution

The fourth proportional to 2,789.25, 3,849.21 and 1,670.23 is: 2,304.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.25 : 3,849.21 = 1,670.23 : x
  2. Step 2: Convert to fraction form
    2,789.25/3,849.21 = 1,670.23/x
  3. Step 3: Cross multiply
    2,789.25x = 3,849.21 × 1,670.23
  4. Step 4: Simplify right side
    2,789.25x = 6,429,066.02
  5. Step 5: Solve for x
    x = 6,429,066.02/2,789.25
  6. Step 6: Final answer
    x = 2,304.94

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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.