Home / 2,789.71-4,185.48-2,009.08

Finding the Fourth Proportional to 2,789.71, 4,185.48 and 2,009.08

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Solution

The fourth proportional to 2,789.71, 4,185.48 and 2,009.08 is: 3,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,789.71 : 4,185.48 = 2,009.08 : x
  2. Step 2: Convert to fraction form
    2,789.71/4,185.48 = 2,009.08/x
  3. Step 3: Cross multiply
    2,789.71x = 4,185.48 × 2,009.08
  4. Step 4: Simplify right side
    2,789.71x = 8,408,964.16
  5. Step 5: Solve for x
    x = 8,408,964.16/2,789.71
  6. Step 6: Final answer
    x = 3,014.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.