Home / 3,015.58-4,531.92-1,783.21

Finding the Fourth Proportional to 3,015.58, 4,531.92 and 1,783.21

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Solution

The fourth proportional to 3,015.58, 4,531.92 and 1,783.21 is: 2,679.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,015.58 : 4,531.92 = 1,783.21 : x
  2. Step 2: Convert to fraction form
    3,015.58/4,531.92 = 1,783.21/x
  3. Step 3: Cross multiply
    3,015.58x = 4,531.92 × 1,783.21
  4. Step 4: Simplify right side
    3,015.58x = 8,081,365.06
  5. Step 5: Solve for x
    x = 8,081,365.06/3,015.58
  6. Step 6: Final answer
    x = 2,679.87

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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.